WIP: SPV Remapper: add remapper test framework

Test/baseResults/remap.basic.none.frag.out

@@ -0,0 +1,44 @@
+remap.basic.none.frag
+Warning, version 450 is not yet complete; most version-specific features are present, but some are missing.
+
+
+Linked fragment stage:
+
+
+// Module Version 10000
+// Generated by (magic number): 80001
+// Id's are bound by 20
+
+                              Capability Shader
+               1:             ExtInstImport  "GLSL.std.450"
+                              MemoryModel Logical GLSL450
+                              EntryPoint Fragment 4  "main" 15 17
+                              ExecutionMode 4 OriginUpperLeft
+                              Source GLSL 450
+                              Name 4  "main"
+                              Name 9  "dead_fn("
+                              Name 15  "outf4"
+                              Name 17  "inf"
+               2:             TypeVoid
+               3:             TypeFunction 2
+               6:             TypeFloat 32
+               7:             TypeVector 6(float) 3
+               8:             TypeFunction 7(fvec3)
+              11:    6(float) Constant 0
+              12:    7(fvec3) ConstantComposite 11 11 11
+              13:             TypeVector 6(float) 4
+              14:             TypePointer Output 13(fvec4)
+       15(outf4):     14(ptr) Variable Output
+              16:             TypePointer Input 6(float)
+         17(inf):     16(ptr) Variable Input
+         4(main):           2 Function None 3
+               5:             Label
+              18:    6(float) Load 17(inf)
+              19:   13(fvec4) CompositeConstruct 18 18 18 18
+                              Store 15(outf4) 19
+                              Return
+                              FunctionEnd
+     9(dead_fn():    7(fvec3) Function None 8
+              10:             Label
+                              ReturnValue 12
+                              FunctionEnd