Added . get/set support for dictionaries.

cosmoO_getObject and cosmoO_setObject were renamed to cosmoV_getRawObject and cosmoV_setRawObject respectively
`__init` is now required to be defined for a proto object to be instantiated.
other minor refactoring work done in src/cvm.c

examples/test.cosmo

@@ -1,5 +1,7 @@
 // crafts a dummy proto
-proto test end
+proto test 
+    function __init(self) end
+end
 
 // instance of test
 var obj = test()