Missing `adb install-multiple` API

[skyf0l]

Hello, the adb install command is covered by the following install function, but there is no equivalent for the adb install-multiple command.
Without it, I can't install APKs requiring several sub APKs. Do you have any workaround without calling adb install-multiple via a os.system call?

adbutils/adbutils/install.py

Lines 46 to 66 in ec8204f

	def install(self,
	path_or_url: str,
	nolaunch: bool = False,
	uninstall: bool = False,
	silent: bool = False,
	callback: typing.Callable[[str], None] = None,
	flags: list = ["-r", "-t"]):
	"""
	Install APK to device
	Args:
	path_or_url: local path or http url
	nolaunch: do not launch app after install
	uninstall: uninstall app before install
	silent: disable log message print
	callback: only two event now: <"BEFORE_INSTALL" | "FINALLY">
	flags (list): default ["-r", "-t"]
	Raises:
	AdbInstallError, BrokenPipeError
	"""

[codeskyblue]

you can use adbutils.adb_path() to get full adb path, this might help.