Disable 64 bit float encoding (#82)

Author: tolauwae

src/messaging/Message.ts

@@ -177,8 +177,8 @@ export namespace Message {
             let payload: string = '';
             args.forEach((arg: Value<Type>) => {
                 if (arg.type === Float.f32 || arg.type === Float.f64 || arg.type === Special.nan || arg.type === Special.infinity) {
-                    const buff = Buffer.alloc(arg.type === Float.f32 ? 4 : 8);
-                    write(buff, Number(arg.value), 0, true, arg.type === Float.f32 ? 23 : 52, buff.length);  // todo fix precision loss
+                    const buff = Buffer.alloc(4);
+                    write(buff, Number(arg.value), 0, true, 23, buff.length);  // todo fix precision loss
                     payload += buff.toString('hex');
                 } else {
                     payload += WASM.leb128(arg.value);