Filled in all c++ headers from QB code.

Copied methods not yet implemented from QB to cpp files.

sbf-cpp/Colors.cpp

@@ -0,0 +1,23 @@
+#include "Colors.h"
+
+namespace SBF {
+    
+    // TODO: Update these if they're wrong. They should be the initial color pair.
+    static uint8_t g_foregroundColor = kColorDarkWhite;
+    static uint8_t g_backgroundColor = kColorDarkBlack;
+    static uint16_t g_color;
+
+    void SetForegroundColor(uint8_t foregroundColor) {
+        g_foregroundColor = foregroundColor;
+        // TODO: update g_color with g_foregroundColor and g_backgroundColor.
+    }
+    uint8_t GetForegroundColor() {
+        return g_foregroundColor;
+    }
+
+    // ncurses color pair
+    uint16_t GetColor() {
+        return g_color;
+    }
+
+} // End namespace SBF