Switch to AMBuild & WIP port to Counter-Strike 2

AMBuilder

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+# vim: set sts=2 ts=8 sw=2 tw=99 et ft=python: 
+import os
+
+# Here only one sdk should be available to generate only one executable in the end,
+# as multi-sdk loading isn't supported out of the box by metamod, and would require specifying the full path in the vdf
+# which in the end would ruin the multi-platform (unix, win etc) loading by metamod as it won't be able to append platform specific extension
+# so just fall back to the single binary.
+# Multi-sdk solutions should be manually loaded with a custom plugin loader (examples being sourcemod, stripper:source)
+for sdk_name in MMSPlugin.sdks:
+  for cxx in MMSPlugin.all_targets:
+    sdk = MMSPlugin.sdks[sdk_name]
+
+    if not cxx.target.arch in sdk.platformSpec[cxx.target.platform]:
+      continue
+
+    binary = MMSPlugin.HL2Library(builder, cxx, MMSPlugin.plugin_name, sdk)
+
+    binary.sources += [
+      'MovementUnlocker.cpp',
+    ]
+
+    if sdk_name in ['dota', 'cs2']:
+      binary.sources += [
+      os.path.join(sdk.path, 'tier1', 'convar.cpp'),
+      os.path.join(sdk.path, 'public', 'tier0', 'memoverride.cpp'),
+    ]
+
+    if cxx.target.arch == 'x86':
+      binary.sources += ['sourcehook/sourcehook_hookmangen.cpp']
+    nodes = builder.Add(binary)
+    MMSPlugin.binaries += [nodes]
+    
+  break