Added cmd arg parser, cleaned things up a bit
House keeping
Some doc and minor details
Separate code into headers
Changing input file to text
Updated code to use the GSL random number generator and distributions. Combined set seed functions into single set seed call. Removed the random library. Gaussian and uniform number distributions now generated from GSL.
Comments added
Added sqlite read functionality. Life table will be read from this DB.
Small non-code edits
Merge branch 'master' of github.com:mjharrigan/HEP-CE

Conflicts:
	src/Cohort.h
Integreated the SQLite call into main. Added mortality probs by gender. R code now reproduces govt file with new data.
Renamed some variables. Switch to enums classes from enums. Now using GSL exclusively for random number generation.
Brought all code to same bracket style. Adding monthly death counter. Switch unique key to look at Gender datatype instead of string of male or female.
Updated output, only out month and number dead in each month. Added hashed counter for each month. Removed some now old variables.
Added stage enums. Changed monthly loop in main, now terminates with change in status of extant, removed break statment. Changed output format slightly.
Added SMR functionality to death probability. Allowed query to be passed to ReadDB to generalize functionality a bit.
Added enums class for risk status (ETOH and IDU)
Removed old script
Merge branch 'master' of github.com:mjharrigan/HEP-CE
Updated to cmath, std11 lib