📑 Support multiple modules

[tolauwae]

Tasks:

• Move stack pointers from Module to WARDuino class

Spectests that fail because of this missing proposal:

• block.wast

[tolauwae]

WARDuino/tests/integration/wasm_tests.cpp

Lines 67 to 70 in e761394

	m->sp = -1;
	m->fp = -1;
	m->csp = -1;
	// TODO move to the WARDuino class

This would indeed be a convenient addition to the WARDuino class

Originally posted by @beardhatcode in #26 (comment)