WIP: SPV Remapper: add remapper test framework

Test/baseResults/remap.if.everything.frag.out

@@ -0,0 +1,47 @@
+remap.if.everything.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 22855
+
+                              Capability Shader
+               1:             ExtInstImport  "GLSL.std.450"
+                              MemoryModel Logical GLSL450
+                              EntryPoint Fragment 5663  "main" 3773 4539
+                              ExecutionMode 5663 OriginUpperLeft
+               8:             TypeVoid
+            1282:             TypeFunction 8
+              13:             TypeFloat 32
+             650:             TypePointer Input 13(float)
+            3773:    650(ptr) Variable Input
+              24:   13(float) Constant 1073741824
+               9:             TypeBool
+              29:             TypeVector 13(float) 4
+             666:             TypePointer Output 29(fvec4)
+            4539:    666(ptr) Variable Output
+             947:   13(float) Constant 3204448256
+            5663:           8 Function None 1282
+            7911:             Label
+           21734:   13(float) Load 3773
+           13508:     9(bool) FOrdGreaterThan 21734 24
+                              SelectionMerge 19578 None
+                              BranchConditional 13508 13182 10142
+           13182:               Label
+            9496:   13(float)   Load 3773
+           17615:   29(fvec4)   CompositeConstruct 9496 9496 9496 9496
+                                Store 4539 17615
+                                Branch 19578
+           10142:               Label
+           22854:   13(float)   Load 3773
+            9982:   13(float)   FAdd 22854 947
+           12421:   29(fvec4)   CompositeConstruct 9982 9982 9982 9982
+                                Store 4539 12421
+                                Branch 19578
+           19578:             Label
+                              Return
+                              FunctionEnd