Mount Cook

Add

• [NEW] Add windows 32bit and 64bit dependency
• [NEW] Add macOs dependency
• [NEW] Add pkg to vendor

Solve the problem of dependence, remove zlib/libpng dependencies

• [NEW] Add FindColorCS(x, y, w, h int, color CHex), CHex type and examples #84
• [NEW] Add kill the process
• [NEW] Add public event and update code
• [NEW] Add Windows 32bit and 64bit Appveyor CI

Update

• [NEW] Update png io
• [NEW] Update cgo link
• [NEW] Update .gitignore
• [NEW] Update README.md and godoc
• [NEW] Update CHANGELOG.md
• [NEW] Update circle to 2.0, add robotgo Dockerfile custom image
• [NEW] Update and fmt C code
• [NEW] Update GetTitle default value "null" to ""

Fix

• [FIX] Fix FindColor inconvenient parameters
• [FIX] Fix installation requirements #72
• [FIX] Fix GetTitle return address of local variable in the higher gcc version. #81

See Commits for more details, after Nov 10.