* Get more shim_exec.bats tests passing by adding shebang lines to test scripts
* Disable shim_exec test case for scenario that is no longer possible
* Add documentation on another breaking change
* Create toolversions.Version struct and update code to use new struct
* Move `versions.ParseString` function to the toolversions package
* Create `toolversions.FormatForFS` function
* use new `toolversions.FormatForFS` function
* Create `asdf where` command
* Enable BATS tests for `asdf where` command
* Create help package
* Add help command
* Enable help command BATS tests
* Implement functions in help package
* Write tests
* Correct function call in `installPlugin` test helper in shims package