indicators

• Fixed build issues in g++ caused by missing header #54
• Auto-detecting terminal width to fill the remainder of the progress bar with empty spaces #56
  • Previously this was hard-coded to 10 spaces
• Fixed multiple definitions in helper functions, e.g., cursor control #58
• Implemented option::ProgressType which can be incremental or decremental - Provides an easy interface to implement decremental progress (a regressing bar) #59
• Updated to latest version of termcolor #60
• Improved Unicode support in progress bar