Initial gamelib integration AAS2 with some animation and physics and another integration pass on idLib.

source/shared/idlib/commandlink.cpp

@@ -0,0 +1,17 @@
+#include "commandlink.h"
+
+namespace {
+idCommandLink* commandLinks = nullptr;
+}
+
+idCommandLink* CommandLinks() {
+    return commandLinks;
+}
+
+idCommandLink::idCommandLink(const char* commandName,
+        commandLinkFunction_t function, const char* description,
+        commandLinkCompletion_t argumentCompletion)
+    : next(commandLinks), cmdName_(commandName), function_(function),
+      description_(description), argCompletion_(argumentCompletion) {
+    commandLinks = this;
+}