UNIT TEST FOR SINGLE GAUS FITTING FUNCTION

Unit test based on the double gaussian equivalent. Initial commit of this with
names changed. Shouldn't need any editing.
INITIAL COMMIT OF DEFINITION OF SINGLE GAUS FIT

Single Gaussian fit is based on the double gaussian fit
ADD IMPLEMENTATION OF SINGLE GAUS FIT
FIX MISNAMED FUNCTION CALL FOR FIT CONFIGURATION
FIX MISMATCH OF BACKGROUND VARIABLE INDEXES
CHANGE FILE TO TEST FILE
ADD INTERACTIVE SUPPORT FOR SINGLE GAUS FITTING MECHANISM
CHANGE FILE TO TEST FILE IN THE UNIT TESTING FOLDER
CHANGE HISTOGRAM USED
ADD SUPPORT TO READING HISTOGRAM FROM PROMPT INPUT
SEPARATE AND EXPLAIN WHERE PROMPT ARGUMENTS ARE READ
RETURN NON-ZERO VALUE IF HISTOGRAM OR FILE ARE NOT READ PROPERLY
ADD ABILITY TO SETUP WHICH HISTOGRAM TO READ FROM PROMPT
Merge branch 'feature/singlegaus' into develop
ADD SUPPORT FOR SINGLE GAUSSIAN FITTING