Rename colour to color in public API code

* Following the principle of least surprise, color tends to be more
  commonly used in APIs and graphics code even outside the USA.

renderdoc/api/replay/control_types.h

@@ -64,7 +64,7 @@ struct MeshFormat
   bool32 bgraOrder;
   SpecialFormat specialFormat;
 
-  FloatVector meshColour;
+  FloatVector meshColor;
 
   bool showAlpha;
 
@@ -127,8 +127,8 @@ struct TextureDisplay
 
   float offx, offy;
 
-  FloatVector lightBackgroundColour;
-  FloatVector darkBackgroundColour;
+  FloatVector lightBackgroundColor;
+  FloatVector darkBackgroundColor;
 
   DebugOverlay overlay;
 };

renderdoc/api/replay/data_types.h

@@ -374,7 +374,7 @@ struct DrawcallDescription
     eventID = 0;
     drawcallID = 0;
     flags = DrawFlags::NoFlags;
-    markerColour[0] = markerColour[1] = markerColour[2] = markerColour[3] = 0.0f;
+    markerColor[0] = markerColor[1] = markerColor[2] = markerColor[3] = 0.0f;
     numIndices = 0;
     numInstances = 0;
     indexOffset = 0;
@@ -406,7 +406,7 @@ struct DrawcallDescription
 
   DrawFlags flags;
 
-  float markerColour[4];
+  float markerColor[4];
 
   uint32_t numIndices;
   uint32_t numInstances;

renderdoc/api/replay/replay_enums.h

@@ -274,7 +274,7 @@ enum class ShaderBuiltin : uint32_t
   PatchNumVertices,
   OuterTessFactor,
   InsideTessFactor,
-  ColourOutput,
+  ColorOutput,
   DepthOutput,
   DepthOutputGreaterEqual,
   DepthOutputLessEqual,
@@ -335,7 +335,7 @@ enum class AlphaMapping : uint32_t
 {
   Discard,
   First = Discard,
-  BlendToColour,
+  BlendToColor,
   BlendToCheckerboard,
   Preserve,
   Count,
@@ -621,7 +621,7 @@ enum class ResourceUsage : uint32_t
   All_RWResource,
 
   InputTarget,
-  ColourTarget,
+  ColorTarget,
   DepthStencilTarget,
 
   Indirect,
@@ -696,7 +696,7 @@ enum class DrawFlags : uint32_t
   Instanced = 0x020000,
   Auto = 0x040000,
   Indirect = 0x080000,
-  ClearColour = 0x100000,
+  ClearColor = 0x100000,
   ClearDepthStencil = 0x200000,
   BeginPass = 0x400000,
   EndPass = 0x800000,