wasm interpreter doesn't allow for wasi to be enabled from CWasm3

[gossmer]

Add the "m3_LinkWASI(module)" to the module when loading a new module. ie.

public init(stackSize: UInt32, module bytes: [UInt8]) throws {
    id = nextInstanceIdentifier
    idPointer = makeRawPointer(for: id)

    guard let environment = m3_NewEnvironment() else {
        throw WasmInterpreterError.couldNotLoadEnvironment
    }

    guard let runtime = m3_NewRuntime(environment, stackSize, idPointer) else {
        throw WasmInterpreterError.couldNotLoadRuntime
    }

    var mod: IM3Module?
    try WasmInterpreter.check(m3_ParseModule(environment, &mod, bytes, UInt32(bytes.count)))
    guard let module = mod else { throw WasmInterpreterError.couldNotParseModule }
    try WasmInterpreter.check(m3_LoadModule(runtime, module))

// New code:
// this must be after the m3_LoadModule
try WasmInterpreter.check(m3_LinkWASI(module))
// end
self.environment = environment
self.runtime = runtime
moduleAndBytes = (module, bytes)
}

[gossmer]

You also need to add into the package.swift

            cSettings: [.define("APPLICATION_EXTENSION_API_ONLY", to: "YES"),
                        .define("__wasi__", to: "YES"),
                        .define("d_m3HasWASI", to: "YES"),
            ]