Code cleanup based upon discussion comments
Code cleanup based upon discussion comments

Added comment-based help parameter, added additional parameter
validation, piped ReadStream.seek command to out-null to prevent output
to stdout.

sammbertram/PowerSploit,adeptex/PowerSploit,mattifestation/PowerSploit,lamkeysing92/PowerSploit,NoobCam/PowerSploit,azizjonm/PowerSploit,bmroberts1987/PowerSploit,z8oon/Powershell,xujun10110/PowerSploit,efateva/PowerSploit,azizjonm/PowerSploit,jorik041/PowerSploit,reuf/PowerSploit,zigitax/PowerSploit,PYANTSU/test,api0cradle/PowerSploit,gabemarshall/PowerSploit,ttyard/PowerSploit,chouchouzzj/Powershell,hoangcuongflp/PowerSploit,indigosax/PowerSploit,leverz/PowerSploit,beni55/PowerSploit,jakxx/PowerSploit,demondayza/PowerSploit,j4s0nh4ck/PowerSploit,zigitax/PowerSploit,lamkeysing92/PowerSploit,indigosax/PowerSploit,secabstraction/PowerSploit,j4s0nh4ck/PowerSploit,forbidden-ali/PowerSploit,PYANTSU/test,reuf/PowerSploit,hoangcuongflp/PowerSploit,masterdon/PowerSploit,secabstraction/PowerSploit,brianaddicks/PowerSploit,jr69ss/PowerSploit,jtaylo78/PowerSploit,mattifestation/PowerSploit,z8oon/Powershell,HarmJ0y/PowerSploit,leverz/PowerSploit,jr69ss/PowerSploit,NoobCam/PowerSploit,amrme/PowerSploit,daviwesley/PowerSploit,jtaylo78/PowerSploit,HarmJ0y/PowerSploit,chouchouzzj/Powershell,beni55/PowerSploit,efateva/PowerSploit,demondayza/PowerSploit,amrme/PowerSploit,daviwesley/PowerSploit,xujun10110/PowerSploit,kk9599/PowerSploit,ttyard/PowerSploit,masterdon/PowerSploit,sammbertram/PowerSploit,api0cradle/PowerSploit,adeptex/PowerSploit,coca1ne/PowerSploit,jorik041/PowerSploit,forbidden-ali/PowerSploit,kk9599/PowerSploit,jakxx/PowerSploit,gabemarshall/PowerSploit,brianaddicks/PowerSploit,coca1ne/PowerSploit,bmroberts1987/PowerSploit