Adds support for DWARF based stack traces

[mathetake]

This implements the support for DWARF-based stack traces. This new feature is enabled by
the experimental API experimental.DWARFBasedStackTraceEnabled and passing that context
to the runtime at compilation time.

For example, let's have the following program:

package main

func main() { a() }
func a() { b() }
func b() { c() }
func c() { panic("NOOOOOOOOOOOOOOO") }

and use experimental.DWARFBasedStackTraceEnabled during the compilation:

ctx := experimental.WithDWARFBasedStackTrace(ctx)
compiled, _ := r.CompileModule(ctx, wasmBinary)

Now, instantiate the compiled module, which results in a runtime error:

_, err = r.InstantiateModule(context.Background(), compiled, wazero.NewModuleConfig())
require.Error(t, err)
fmt.Println(err)

and we have the output like the following:

module[] function[_start] failed: wasm error: unreachable
wasm stack trace:
	.runtime._panic(i32)
		0x16e2: /opt/homebrew/Cellar/tinygo/0.26.0/src/runtime/runtime_tinygowasm.go:73:6
	.c()
		0x190b: /Users/mathetake/wazero/internal/testing/dwarftestdata/testdata/main.go:19:7
	.b()
		0x1901: /Users/mathetake/wazero/internal/testing/dwarftestdata/testdata/main.go:14:3
	.a()
		0x18f7: /Users/mathetake/wazero/internal/testing/dwarftestdata/testdata/main.go:9:3
	.main.main()
		0x18ed: /Users/mathetake/wazero/internal/testing/dwarftestdata/testdata/main.go:4:3
	.runtime.run()
		0x18cc: /opt/homebrew/Cellar/tinygo/0.26.0/src/runtime/scheduler_none.go:26:10
	._start()
		0x18b6: /opt/homebrew/Cellar/tinygo/0.26.0/src/runtime/runtime_wasm_wasi.go:22:5

from which we can easily infer how the execution reached the runtime error because the trace comes with the source code locations.

closes #58

[mathetake]

        wasm stack trace:
        	.runtime._panic(i32)
        		 0x16e2: /opt/homebrew/Cellar/tinygo/0.26.0/src/runtime/runtime_tinygowasm.go:73:6
        	.main.c()
        		 0x190b: /Users/mathetake/wazero/experimental/testdata/dwarf.go:16:7
        	.main.b()
        		 0x1901: /Users/mathetake/wazero/experimental/testdata/dwarf.go:12:3
        	.main.a()
        		 0x18f7: /Users/mathetake/wazero/experimental/testdata/dwarf.go:8:3
        	.main.main()
        		 0x18ed: /Users/mathetake/wazero/experimental/testdata/dwarf.go:4:3
        	.runtime.run()
        		 0x18cc: /opt/homebrew/Cellar/tinygo/0.26.0/src/runtime/scheduler_none.go:26:10
        	._start()
        		 0x18b6: /opt/homebrew/Cellar/tinygo/0.26.0/src/runtime/runtime_wasm_wasi.go:22:5

Ok got the minimal PoC version has started working for interpreter!! next week refine it and will add support for compiler

[mathetake]

almost there on the compiler - the impl looks much more straightforward than I initially thought!

[codefromthecrypt]

thanks for not choosing something that would result in huge dwarf ;)

[mathetake]

ok passed on compilers as well. backfilling tests.

[codefromthecrypt]

great to solve a highly demanded older issue!

only thing I'm worried about is if a module is compiled with the experimental flag on + compiler cache and ran with it off.. does it crash. visa versa also. Maybe add this to the tests.

[codefromthecrypt]

does this invalidate or otherwise make complication cache tricky? ex if the cache was built with this off and used when on or visa versa?

[mathetake]

good point, will do it in another pr

[mathetake]

will add the support via compilation cache later