Update CHECKSUM.md for version 0.2.11

Update version and resource cost comments in global.go

Update main.go

Update CHECKSUM for cloudcost version change

Update checksums in CHECKSUM.md

Remove CheckProgressBar function

Update global.go

Implement temporary file and multiwriter for output

Add licensing section to README

Add gz compression performance metrics to README

Update README.md

Update author note and contact information in README

Update README.md

v2.0.1 codename MightyMouse

v2.0.1 codename MightyMouse