renamed clang to flang
moved clang to flang
started basic types
added CodeGen for some scalar ops
added more codegen for scalar expr
added codegen for some complex ops
added code gen for if and do while stmts
added codegen for basic assignment
added codegen for some implicit conversion
added empty character emitter
added codegen for .eq. .ne. for complex
fixed codegen for fp relational expr
added codegen for and, or logical exprs
added codegen for scalar powers
added codegen for some intrinsics
added codegen for built in type kinds
added codegen for real intrinsic conv
added codegen for missing scalar math intrinsics and arithmetic conversion intrinsics
added codegen for basic function decls
added calls to functions with scalar and complex args and returns