Started frameworks for interpreter
Contains code that identifies functions in a tetra program, and experimentations with a framework to recognize operators for evaluating expressions on the tree.
Compilable features of the interpreter
Added in seperate files to analyze the dump-tree, including a function table. Operaiton table works for all types except double.  Code is very messy and will be cleaned up in future, but at present compiles and works as intended under some simple test cases.