String - Renamed GetTChar and GetTCharLength

- Renamed GetTChar() to GetCStr()
- Renamed GetTCharLength() to GetCStrLength()
Vector/String - Removed the "Get" prefix
- Renamed GetCapacity to Capacity
- Renamed GetLength to Length
- Renamed GetCStrLength to CStrLength
- Renamed GetCStr to CStrPtr
String - TrimLeft

- Implemented String::TrimLeft
- Tested String::TrimLeft
Memory - Changed case of parameters

Changed case of parameters in the Memory namespace to be all lowercase.