[Decompile] connect, text-h, settings-h, capture, memory-usage-h (#410)

* decompile stuff

* temp

* temp2

* fix

* temp

* preparing for merge

* working

* fix stupid format

* fix codacy

test/decompiler/reference/all_forward_declarations.gc

@@ -406,4 +406,23 @@
 (defenum gs-reg64
   :type uint64
   :copy-entries gs-reg
-  )
+  )
+
+;; connect
+(declare-type engine basic)
+
+(defmacro make-u128 (upper lower)
+  `(rlet ((result :class i128)
+          (upper-xmm :class i128)
+          (lower-xmm :class i128))
+     (.mov upper-xmm ,upper)
+     (.mov lower-xmm ,lower)
+     (.pcpyld result upper-xmm lower-xmm)
+     result
+     )
+  )
+
+;; texture
+
+(declare-type texture-page basic)
+(declare-type level basic)