Merge on behalf of Meryem Ayse Yucel and Yuanyuan Gao of new user functions to...

Merge on behalf of Meryem Ayse Yucel and Yuanyuan Gao of new user functions to calculate statistics.

Squashed commit of the following:

commit a5b21e4d
Author: Meryem Ayse Yucel <mayucel@bu.edu>
Date:   Thu Feb 11 08:50:42 2021 -0500

    Create hmrR_PreprocessIntensity_MedianFilter.m

    New function to apply a median filter to data to remove huge spikes.
    Code from Yuanyuan Gao

commit ec90b232
Author: Meryem Ayse Yucel <mayucel@bu.edu>
Date:   Thu Feb 11 05:41:32 2021 -0500

    Create hmrR_PreprocessIntensity_NAN.m

    new function to replace NAN by spline interpolation of the nonnan values

commit 4e5d3052
Author: Meryem Ayse Yucel <mayucel@bu.edu>
Date:   Thu Feb 11 04:56:04 2021 -0500

    Update hmrR_GLM.m

    Calculates and outputs contrast t/p only when nCond>1

commit 02c6def0
Author: Meryem Ayse Yucel <mayucel@bu.edu>
Date:   Thu Feb 11 04:45:17 2021 -0500

    Update hmrR_tCCA.m

    Only AUX (no ss) option did not exist and code was breaking if ss_ch_on = 0 is chosen. Fixed the issue.

commit 52495071
Author: Meryem Ayse Yucel <mayucel@bu.edu>
Date:   Thu Feb 11 03:45:38 2021 -0500

    New function for preprocessing

    "hmrR_PreprocessIntensity_Negative" function fixes negative values in intensity by either adding an offset to make all
    % numbers positive (+eps)(option 1) or just set values <=0 to +eps (option
    % 2)

    hmrR_Intentsity2OD is now intact.

commit d233ccca
Author: Meryem Ayse Yucel <mayucel@bu.edu>
Date:   Wed Feb 10 12:43:01 2021 -0500

    bug fix

    in finding <0 values

commit 053971c7
Author: Meryem Ayse Yucel <mayucel@bu.edu>
Date:   Wed Feb 10 09:06:03 2021 -0500

    minor change