ThreadedSockets-v1.2_3

AppVeyor build
Branch - master
On Commit - a7cdb1f
Date - 2020-11-23T23:10:31.0000000Z

Changelog -
a7cdb1f Build_3 - Update README.md

2bd6030 Build_2 - Manually move to v1.2 for autobuilds

1. Autobuild and deploy on master branch
2. Update MakeFile for including gcc -pthread option on build. Should fix #2 issue.
3. Implementing AppVeyor AutoBuild
4. Updating Project to MSVS2017 and adding standard .gitIgnore