Web: Turn off includes, independent preprocessing path, fine tune all.
Saved about 21K, size down to 380K of MSVC x86 code.
Fixed one bug that needs to be looked at on the master branch:
The test for needing a Vulkan binding has a bug in it, "!layoutAttachment"
which does not mean "no layoutAttachment", because that is non-zero.
This is why some test and test results changed.
diff --git a/Test/baseResults/glspv.vert.out b/Test/baseResults/glspv.vert.out
index f2fe53b..d519262 100644
--- a/Test/baseResults/glspv.vert.out
+++ b/Test/baseResults/glspv.vert.out
@@ -2,12 +2,14 @@
ERROR: 0:3: 'push_constant' : only allowed when using GLSL for Vulkan
ERROR: 0:6: 'descriptor set' : only allowed when using GLSL for Vulkan
ERROR: 0:8: 'shared' : not allowed when generating SPIR-V
+ERROR: 0:8: 'binding' : uniform/buffer blocks require layout(binding=X)
ERROR: 0:9: 'packed' : not allowed when generating SPIR-V
+ERROR: 0:9: 'binding' : uniform/buffer blocks require layout(binding=X)
ERROR: 0:13: 'gl_VertexIndex' : undeclared identifier
ERROR: 0:14: 'gl_InstanceIndex' : undeclared identifier
ERROR: 0:17: 'gl_DepthRangeParameters' : undeclared identifier
ERROR: 0:20: '' : syntax error, unexpected IDENTIFIER, expecting LEFT_BRACE or COMMA or SEMICOLON
-ERROR: 8 compilation errors. No code generated.
+ERROR: 10 compilation errors. No code generated.
SPIR-V is not generated for failed compile or link