Rework installation to allow single node server

[arledesma]

• Enables chocolatey options to be passed to install command
• Defaults to '-server -bootstrap-expect=1' to allow for single node consul cluster
• Defaults to bind to 127.0.0.1 - passing extraArgs="-server -bootstrap-expect=1 -bind=10.1.2.3" should allow a user to default their address to 10.1.2.3. It is left as an exercise to the user to determine which IP address they should bind to.
• Moves ui into $PROGRAMDATA\consul\ui by default
• Removes deprecated Write-ChocolateySuccess and Write-ChocolateyFailure
• Removes deprecated try/catch around install

[calvn]

Sorry, I somehow missed this PR! I'll take a closer look later today/tomorrow and will merge it in if everything is good.