Fix code generation edge cases for closures

Update README

Add code generation for closures

Refactor Wasm to use State, store result of case expr

Fix name collision of locals in generated code

Upgrade stack resolver to lts-14.18

Generate code for nested ADT deconstruction

Include source location in type errors

Improve variable names in TypeChecker

Improve cryptic names in Main, Compiler and HaskellSyntax

Add stack.yaml.lock

Fix code incorrectly generating with int return types instead of floats

Replace (Argument, Type) tuples with TypedArgument in TypedDeclaration

Run specs in parallel

Implement code generation for infix float operations