Move solution and projects to src

src/ARMeilleure/CodeGen/RegisterAllocators/IRegisterAllocator.cs

@@ -0,0 +1,12 @@
+using ARMeilleure.Translation;
+
+namespace ARMeilleure.CodeGen.RegisterAllocators
+{
+    interface IRegisterAllocator
+    {
+        AllocationResult RunPass(
+            ControlFlowGraph cfg,
+            StackAllocator stackAlloc,
+            RegisterMasks regMasks);
+    }
+}