Adds missing QCAlgorithm indicator methods
Adds missing QCAlgorithm indicator methods

Closes #283

StefanoRaggi/Lean,andrewhart098/Lean,AnObfuscator/Lean,AlexCatarino/Lean,bizcad/Lean,jameschch/Lean,mabeale/Lean,AlexCatarino/Lean,tomhunter-gh/Lean,redmeros/Lean,AlexCatarino/Lean,devalkeralia/Lean,tomhunter-gh/Lean,FrancisGauthier/Lean,bizcad/Lean,QuantConnect/Lean,andrewhart098/Lean,AnshulYADAV007/Lean,Jay-Jay-D/LeanSTP,Phoenix1271/Lean,AnObfuscator/Lean,squideyes/Lean,AnshulYADAV007/Lean,JKarathiya/Lean,squideyes/Lean,AnshulYADAV007/Lean,jameschch/Lean,kaffeebrauer/Lean,AnshulYADAV007/Lean,Jay-Jay-D/LeanSTP,jameschch/Lean,StefanoRaggi/Lean,AnObfuscator/Lean,andrewhart098/Lean,FrancisGauthier/Lean,jameschch/Lean,bizcad/Lean,devalkeralia/Lean,StefanoRaggi/Lean,AnObfuscator/Lean,redmeros/Lean,FrancisGauthier/Lean,young-zhang/Lean,Mendelone/forex_trading,young-zhang/Lean,squideyes/Lean,JKarathiya/Lean,mabeale/Lean,JKarathiya/Lean,Jay-Jay-D/LeanSTP,QuantConnect/Lean,Mendelone/forex_trading,redmeros/Lean,AlexCatarino/Lean,Phoenix1271/Lean,devalkeralia/Lean,kaffeebrauer/Lean,QuantConnect/Lean,Jay-Jay-D/LeanSTP,AnshulYADAV007/Lean,andrewhart098/Lean,young-zhang/Lean,redmeros/Lean,bizcad/Lean,StefanoRaggi/Lean,Phoenix1271/Lean,tomhunter-gh/Lean,kaffeebrauer/Lean,QuantConnect/Lean,kaffeebrauer/Lean,squideyes/Lean,tomhunter-gh/Lean,mabeale/Lean,jameschch/Lean,kaffeebrauer/Lean,Phoenix1271/Lean,Jay-Jay-D/LeanSTP,JKarathiya/Lean,young-zhang/Lean,Mendelone/forex_trading,Mendelone/forex_trading,devalkeralia/Lean,mabeale/Lean,StefanoRaggi/Lean,FrancisGauthier/Lean