Request decompression

It's received by the server (erpc) as a gzipped request and erpc decompresses it and passes it to the upstream servers.  We're currently offering this for some of our customers via a lua script in openresty.  The benefit to our customer is it helps them save egress costs when running in clouds that charge egress fees.  Would love it if this was something erpc could support.

For example:

echo '{
  "jsonrpc":"2.0",
  "method":"eth_chainId",
  "params":[],
  "id":1
}' | gzip | curl -i --request POST \
  --url http://localhost:4000 \
  --header 'Content-Type: application/json' \
  --header 'Content-Encoding: gzip' \
  --compressed \
  --data-binary @-