feature(udf):refactor code and fix bugs

feat: sql command 'grant', 'revoke', 'kill transaction' and 'show transactions'

fix(rpc): fix invalide fqdn

refact: vnode

fix(query): remove a false assert.

feat(stream): stream operator invert

fix(query): fix memory leak.

feat: rollup sma optimization

<test>:add test case

feat(query): add histogram normalized processing

constant values.

test: add test case for trigonometric functions