Changing the indentation settings

I changed the indentation settings to match my preference of using tabs set to
the width of 2 spaces.
Updated the function symtbl_init as per instructions

No testing has been done yet, but the function should be implemented as per the
instructions provided in class and the in-code documentation.
Updated the function symtbl_hash as per instructions

No testing has been done yet, but the function should be implemented as per the
instructions provided in class and the in-code documentation.
Starting work on symtbl_install