Add general timings for sections of the compiler

roadmap.md

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+# Odin Roadmap
+
+Not in any particular order
+
+* Compile Time Execution (CTE)
+	- More metaprogramming madness
+	- Compiler as a library
+	- AST inspection and modification
+* CTE-based build system
+* Replace LLVM backend with my own custom backend
+* Improve SSA design to accommodate for lowering to a "bytecode"
+* SSA optimizations
+* Parametric Polymorphism