One-KVM OS preinstalled remote access clients

GOSTC client (gostc): official binary release by SianHH.
Upstream repository: https://github.com/SianHH/gostc-open
Official release: https://github.com/SianHH/gostc-open/releases/tag/v2.0.9

EasyFrp client (easyfrpc): official binary release by SianHH.
Upstream repository: https://github.com/SianHH/easyfrp
Official terms: https://docs.gost.de5.net/docs/easyfrp/authorize
Official client instructions: https://docs.gost.de5.net/docs/easyfrp/client-deploy-binary
No source code or Apache license for EasyFrp is asserted by this distribution.

EasyTier: https://github.com/EasyTier/EasyTier
License: Apache-2.0

frp client (frpc): https://github.com/fatedier/frp
License: Apache-2.0

