Committing .gitignore file
clean-up of menu options and added first option of 'echo' program
write concise version of the copy function as per K&R.
Added explanation as to why 'int' is used instead of 'char' for char type values. K&R.
Added printing of no. of characters and no. of lines to the echo program.
Added a new file wc.c for word count program,
Added word counting functionality.
Added comment on how to run the program with text file has input.
Added comments.
Added logic for counting digits, white spaces, and other characters. Based on K&R.