Update tests with namespaces

docs/modules/SUMMARY.md

@@ -54,7 +54,7 @@ Let's say we have a module named `math.sb` in the same directory as out `main.sb
 import "math"
 
 fn main() {
-    println(add(1, 2))
+    println(math::add(1, 2))
 }
 ```
 

tests/importable_module/module.sb

@@ -2,5 +2,5 @@ import "foo/bar"
 
 fn external_function() {
     println("I was called!!")
-    nested_module()
+    bar::nested_module()
 }

tests/imports.sb

@@ -2,5 +2,5 @@ import "importable_module"
 
 fn imports_main() {
     log_test_stage("Testing imports")
-    external_function()
+    importable_module::external_function()
 }

tests/main.sb

@@ -14,15 +14,15 @@ import "unicode"
 
 
 fn main() {
-    log_test_stage("Running tests")
+    logger::log_test_stage("Running tests")
 
-    conditionals_main()
-    functions_main()
-    imports_main() 
-    numbers_main()
-    structs_main()
-    types_main()
-    unicode_main()
+    conditionals::conditionals_main()
+    functions::functions_main()
+    imports::imports_main() 
+    numbers::numbers_main()
+    structs::structs_main()
+    types::types_main()
+    unicode::unicode_main()
 
-    log_test_stage("Done!")
+    logger::log_test_stage("Done!")
 }