Add jetton minter and jetton wallet

Source/TonSwift/Address/FriendlyAddress.swift

@@ -89,7 +89,7 @@ public struct FriendlyAddress: Codable {
         var addrcrc = Data(count: 36)
         addrcrc[0...] = addr
         addrcrc[34...] = addr.crc16()
-                
+
         if urlSafe {
             return addrcrc.base64EncodedString().replacingOccurrences(of: "+", with: "-").replacingOccurrences(of: "/", with: "_")
         } else {

Source/TonSwift/Cells/Builder.swift

@@ -523,4 +523,17 @@ public class Builder {
         }
     }
 
+    // MARK: Storing Address
+
+    @discardableResult
+    public func store(address: Address?) throws -> Self {
+        if let address {
+            return try store(uint: 2, bits: 2)
+                .store(uint: 0, bits: 1)
+                .store(int: address.workchain, bits: 8)
+                .store(data: address.hash)
+        } else {
+            return try store(uint: 0, bits: 2)
+        }
+    }
 }

Source/TonSwift/Contracts/Jetton/JettonMinter.swift

@@ -0,0 +1,79 @@
+//
+//  JettonMinter.swift
+//  
+//
+//  Created by Kirill Kirilenko on 20/07/2023.
+//
+
+import Foundation
+import BigInt
+
+let jettonMinterBoc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
+
+public class JettonMinter {
+    let cell: Cell
+
+    init(bocString: String = jettonMinterBoc) throws {
+        cell = try Cell.fromBase64(src: bocString)
+    }
+
+    func createDataCell(
+        owner: Address,
+        metadata: Cell,
+        jettonWalletCode: Cell
+    ) throws -> Cell {
+        try Builder()
+            .store(coins: .init(0)) // total supply
+            .store(address: owner)
+            .store(ref: metadata)
+            .store(ref: jettonWalletCode)
+            .endCell()
+    }
+
+    func createMintBody(
+        destination: Address,
+        jettonAmount: BigInt,
+        amount: BigInt = 50000000,
+        queryId: Int = 0
+    ) throws -> Cell {
+        try Builder()
+            .store(uint: 21, bits: 32) // OP-code mint
+            .store(uint: queryId, bits: 64)
+            .store(address: destination)
+            .store(coins: Coins(amount))
+            .store(
+                ref: try Builder()
+                    .store(uint: 0x178d4519, bits: 32) // OP-code transfer
+                    .store(uint: queryId, bits: 64)
+                    .store(coins: Coins(jettonAmount)) // jetton amount
+                    .store(address: nil) // from_address
+                    .store(address: nil) // response_address
+                    .store(coins: .init(0)) // forward amount
+                    .store(bit: .zero) // forward_payload in this slice, not separate cell
+                    .endCell()
+            )
+            .endCell()
+    }
+
+    func createChangeAdminAddress(
+        newAdmin: Address,
+        queryId: Int = 0
+    ) throws -> Cell {
+        try Builder()
+            .store(uint: 3, bits: 32) // OP-code
+            .store(uint: queryId, bits: 64) // query_id
+            .store(address: newAdmin)
+            .endCell()
+    }
+
+    func createEditContent(
+        metadata: Cell,
+        queryId: Int = 0
+    ) throws -> Cell {
+        try Builder()
+            .store(uint: 4, bits: 32) // OP-code
+            .store(uint: queryId, bits: 64) //query_id
+            .store(ref: metadata)
+            .endCell()
+    }
+}

Source/TonSwift/Contracts/Jetton/JettonWallet.swift

@@ -0,0 +1,54 @@
+//
+//  JettonWallet.swift
+//  
+//
+//  Created by Kirill Kirilenko on 20/07/2023.
+//
+
+import Foundation
+
+let jettonWalletBoc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
+
+public class JettonWallet {
+    let cell: Cell
+
+    init(bocString: String = jettonWalletBoc) throws {
+        cell = try Cell.fromBase64(src: bocString)
+    }
+
+    public func createTransfer(
+        to address: Address,
+        jettonAmount: Int,
+        forwardAmount: Int = 0,
+        forwardPayload: Bit? = nil,
+        responseAddress: Address? = nil,
+        queryId: Int = 0
+    ) throws -> Cell {
+        let builder = try Builder()
+            .store(uint: 0xf8a7ea5, bits: 32) // request_transfer op
+            .store(uint: queryId, bits: 64)
+            .store(coins: .init(jettonAmount))
+            .store(address: address)
+            .store(address: responseAddress ?? address)
+            .store(bit: 0) // custom_payload
+            .store(coins: .init(forwardAmount))
+        if let forwardPayload {
+            try builder
+                .store(bit: forwardPayload)
+        }
+        return try builder.asCell()
+    }
+
+    public func createBurn(
+        jettonAmount: Int,
+        responseAddress: Address? = nil,
+        queryId: Int = 0
+    ) throws -> Cell {
+        try Builder()
+            .store(uint: 0x595f07bc, bits: 32) // burn OP
+            .store(uint: queryId, bits: 64)
+            .store(coins: .init(jettonAmount))
+            .store(address: responseAddress)
+            .endCell()
+    }
+}