Merge pull request Klevry#80 from NexClipper/master

request merge

Merge pull request Klevry#70 from NexClipper/master

edit agent(make build) && add init callback api

Update Dockerfile

Merge pull request Klevry#65 from NexClipper/master

add clean apt list
Thanks!

update for Docker stable version build

Merge pull request Klevry#63 from NexClipper/master

edit klevr-agent

Merge pull request Klevry#63 from NexClipper/master

edit klevr-agent

update for common package

update for COPY command test

purge go.mod everwhere