Auto-generate the bindings from Frida's .gir

Replace the hand-written extension and core with a generator
(frida/frida_bindgen) that reads Frida's .gir files and emits the
_frida C extension plus the sync frida.* and async frida.aio.*
facades.

Covers construction, enumeration, attach/spawn with keyword-argument
options, sessions, scripts, script RPC (blocking and awaitable),
signals with flexible handler arity, exception mapping, lists,
vardict/variant, bytes and string arrays, and top-level device
helpers. Also emits a real .pyi for the extension.

The little logic that cannot come from the .gir -- the GObject glue,
the marshallers and the RPC layer -- lives in clearly scoped assets.

Author: oleavr

.gitignore

@@ -1,5 +1,7 @@
 *.pyc
+*.abi3.so
 /*.egg-info/
+/.cache/
 /build/
 /deps/
 /dist/

.gitmodules

@@ -1,3 +1,6 @@
 [submodule "releng"]
 	path = releng
 	url = https://github.com/frida/releng.git
+[submodule "frida-bindgen"]
+	path = frida-bindgen
+	url = https://github.com/frida/frida-bindgen.git

MANIFEST.in

@@ -1,8 +1,8 @@
 include meson.build
 include frida/meson.build
-include frida/_frida/extension.c
-include frida/_frida/extension.version
-include frida/_frida/meson.build
+include frida/extension.version
+recursive-include frida/frida_bindgen *.py *.c *.h
+recursive-include frida-bindgen *.py
 include subprojects/frida-core.wrap
 
 include BSDmakefile

Makefile

@@ -8,7 +8,7 @@ all $(MAKECMDGOALS):
 		$(MAKECMDGOALS)
 
 git-submodules:
-	@if [ ! -f releng/meson/meson.py ]; then \
+	@if [ ! -f releng/meson/meson.py ] || [ ! -f frida-bindgen/frida_bindgen_core/model.py ]; then \
 		git submodule update --init --recursive --depth 1; \
 	fi
 -include git-submodules