Uses native go:embed #37

• Highlight jvm in red if attaching fails
• Show username that the jvm is running under
• Show jvm process command line if we cannot determine the main class
• "-v" command argument to show version
• Misc cleanup and fixes

Upgraded TermUI library to latest version.

Early Access v1.0:

• Rewritten in Go
• Single executable file
• Supports Java 11 and Java 8
• Does not require a JDK to run

• Improved startup script that finds JAVA_HOME on Mac and prints warnings
• Fixes #10 , #16, #17

Release notes:

• Added top threads view (#4)
• Processes can now be killed with Del/Backspace (#11)
• Fixed error when running app from another directory (#8)
• Printing out a warning if tools.jar cannot be found (#12)
• Showing max heap and non-heap
• Showing thread count

Initial release

Works on Linux and MacOS only