inject argc, argv, environ

[markus2330]

For the FUSE binding we need some way to inject argc, argv, environ to be used by gopts.

Ideally, this would be fixed together with #2764, so that it is also ensured that gopts is present for FUSE.

[kodebach]

In created a quick hacky workaround solution in #3608. This won't be the final solution for various reasons, but it should allow @dev2718 to keep working on their FUSE implementation.

In the end the goal is to integrate the functionality into a new version of kdbOpen (together with kdbEnsure). But I don't know when I will find time to do that, or how long it will take to get it done (could be weeks). So I created this hacky solution for.

@dev2718 You should probably just merge #3608 into a branch of your fork and use it until the permanent solution is done. This is how you use it:

libelektra/src/bindings/swig/python/tests/test_gopts.py

Lines 86 to 89 in dad3f19

	custom_argv = [ "get", "-v", "user:/"]
	custom_envp = []
	db.setupGOpts (base_key, len(custom_argv), custom_argv, custom_envp)