create repository for MatlabCoder_1b
modified gfit_rdfile.m to return results of Gaussian fitting at both IR and UV.
But still has bugs. Compiling error of FILE declaration in Eclipse and seems does not work right.
Dual Gaussian fitting (for both IR/UV) OK.
(1) gfit_rdfile() returns double gfir[3] and double gfuv[3] containing the position(mean), amplitude(A) and standard deviation (sigma)
(2) Adding working files:
    work_gfit/gfit.m to test the gaussian fitting only
     work_gfit_rdfile/readfile.m to test gaussian fitting and file access.
Create new function meanfile(fname) to calculate the mean and std of IR and UV data.
Please note, this meanfile function only processes the data file that contains ONE data line only.
OK. meanfile(filename) to calculate the mean value of data file 'filename'.
Add generated c source codes (codegen\lib\gfit)into repo

Signed-off-by: dxw <xuewu.dai@eng.ox.ac.uk>