feat(binding-macro): service method supports none payload and none response

[nolanxyg]

What type of PR is this?

feature: binding-macro

What this PR does / why we need it:

Add feature: service method supports none payload and none response

#[read] 
fn read_method(&self, ctx: ServiceContext) -> ProtocolResult<()>;

#[write] 
fn write_method(&self, ctx: ServiceContext) -> ProtocolResult<()>;

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

If service method return (), the value return from ServiceSDK, would be Ok("")

pub trait ServiceSDK {
    fn read(
        &self,
        ctx: &ServiceContext,
        service: &str,
        method: &str,
        payload: &str,
    ) -> ProtocolResult<String>;

    fn write(
        &mut self,
        ctx: &ServiceContext,
        service: &str,
        method: &str,
        payload: &str,
    ) -> ProtocolResult<String>;