Retargeted to .NET 4.5.1
Code cleanup: CompressionOptions
Updated bsasharp-cli to .NET 4.5.1
Code cleanup: BsaHashComparer
Code cleanup: ArchiveSettings
Code cleanup: BsaFolder
Code cleanup: BsaFile
Code cleanup: Bsa
Code cleanup: BsaReader
Code cleanup: Removed unused directives (BSA#)
BinaryExtensions.TrimStart uses Ordinal string comparison
Code cleanup: Bsa
Code cleanup: BsaHeader
CreateHash defaults to empty string for parameters
Minor style tweaks
Added BSAFolder.UnpackAsync
Added exception cases for packing top level files