Adding Common Lisp as a language for exercism.

This changeset includes the bob exercise plus needed support code.
Adding the rna-transcription exercise for Common Lisp
Adding word-count exercise for Lisp
Improving bob code.
Adding anagram exercise for Lisp
Beer Song exercise for lisp.
Nucleotide count example for Lisp.
Point Mutation exercise for Lisp
Fixing placement of this file.

The Point Mutation example code was placed in the parent of the point mutation
assignment directory.
Phone number exercise for Common Lisp.
Merge pull request #1212 from verdammelt/lisp-phone-number

Phone number exercise for Common Lisp.
Robot name exercise for Common Lisp
Leap year exercise in Common Lisp.
Grade School exercise for Common Lisp
ETL exercise for Common Lisp.
Space Age exercise for Common Lisp
Meetup exercise for Common Lisp.
Adding lisp grains exercise.
Merge pull request #1263 from verdammelt/lisp-meetup

Adding meetup exercise for Common Lisp.
Lisp Gigasecond exercise