Call out to Lakeroad to attempt to synthesize the PrimitiveInterface

[gussmith23]

Given an egraph with a primitive interface present inside of it, call out to Lakeroad to attempt to synthesize the primtive interface(s).

Probably easier to just start with the following functions:

1. A function to find instances of primitive interfaces
2. A function to, for a given instance of a primitive interface, call Lakeroad.

[gussmith23]

In the future, we should allow for an arbitrary Churchroad expression to be compiled to a sketch and sent off to Lakeroad:
#86
for now, though, we can keep this simple, by just having a few hardcoded patterns we're looking for (e.g. a single DSP, which will then use Lakeroad's existing DSP sketch template.)