Rewrite Powershell Encoding and Ruby Decoding for bread method
Rewrite Powershell Encoding and Ruby Decoding for bread method

1) Change buffer size from 32K to 128K.
2) Increase number of buffer cache entries from 300 to 1200.
3) Change the PowerShell encoding from ToBase64String to ToBase64CharArray and use
   [string]::join
4) The join above will simply the ruby decoding step - no longer need the loop to split
   the string on spaces.

rsevilla87/manageiq-gems-pending,aljesusg/manageiq-gems-pending,rsevilla87/manageiq-gems-pending,aljesusg/manageiq-gems-pending