Default Prompt Colors

[dahlbyk]

Much easier to close #474 with the changes from #513.

• DefaultPromptPrefix, DefaultPromptSuffix and DefaultPromptDebugSuffix are now PoshGitTextSpans that understand colors
• DefaultPromptPathColor and DefaultPromptTimingColor are supported, too

Update: Also closes #469 by:

• Exporting Get-PromptPath with our default ($GitPromptSettings-based) path behavior
• Supporting DefaultPromptPath (also a PoshGitTextSpan) to control colors and the string to expand when prompt executes ('$(Get-PromptPath)' by default)

To customize how the path is displayed, the user would do something like...

function Get-FancyPromptPath {
  (Get-PromptPath).ToUpper()
}
$GitPromptSettings.DefaultPromptPath.Text = '$(Get-FancyPromptPath)'

[rkeithhill]

Nice adds. I like it!

Added more

[dahlbyk]

I just pushed an additional commit to pivot from DefaultPromptPathColor to DefaultPromptPath to close #469. Updating this PR description to reflect the change.

[rkeithhill]

It's tempting to add parameters to this function Iike -AbbreviateHomeDir and -PathTruncateLimit which would eliminate the need for the equivalent $GitPromptSettings but the "discoverability" of this functionality would be very poor. Probably best to leave those in $GitPromptSettings.

[dahlbyk]

That's exactly how I started, but moved away from it in favor of keeping the default DefaultPromptPath text simple ('$(Get-PromptPath)').