feat(types): move types to header file

include/types.h

@@ -0,0 +1,11 @@
+#ifndef RIVOS_TYPES_H
+#define RIVOS_TYPES_H
+
+/**
+ * Define our standard types
+ */
+typedef unsigned char u8;
+typedef unsigned int u32;
+typedef u32 size_t;
+
+#endif