Reintroduce C++ support and add usage tests for C++ (#4)

Reviewed-on: #4
Co-authored-by: Abdelrahman <said.abdelrahman89@gmail.com>
Co-committed-by: Abdelrahman <said.abdelrahman89@gmail.com>

src/common/aliases/aliases.h

@@ -30,13 +30,17 @@
 
 #define b32 uint32_t
 
+#ifndef WAPP_PLATFORM_CPP
+
 #ifndef false
 #define false (b32)0
-#endif
+#endif // !false
 
 #ifndef true
 #define true (b32)1
-#endif
+#endif // !true
+
+#endif // !WAPP_PLATFORM_CPP
 
 #define i8 int8_t
 #define i16 int16_t
@@ -54,4 +58,10 @@
 #define internal static
 #define persistent static
 
+#ifdef WAPP_PLATFORM_CPP
+#define class_mem static
+#define BEGIN_C_LINKAGE extern "C" {
+#define END_C_LINKAGE }
+#endif // WAPP_PLATFORM_CPP
+
 #endif // !ALIASES_H