Support for -R / --recursive about colorls

[athityakumar]

Oops, sorry for the confusion. Thanks for pointing out, @kaustubhhiware. This is what I meant -

• Initially, I wanted a -r / --recursive flag that opens all sub-directories and shows files present in them.
• Then, a request came for symlinks with -r flag. Hence, I renamed --recursive to -R.
• However, symlink support has been added with -l flag itself. And, --recursive / -R functionality has been added with -t / --tree flag. Hence, closed this issue. 😄

[athityakumar]

Update : As symlink support is being added in -r flag, this option has been updated to -R.

[athityakumar]

Fixed with -t / --tree flag.

[kaustubhhiware]

@athityakumar Can you correct your second comment above as follows

- is being added in `-r` flag
+ is being added in `-t` flag

This would be convenient in the future and remove any misunderstandings (and reduce some emails 😅 ) later. This comment will be removed later.