updated hiedr2mosaic to not remove flat files if the keep flag is true

[AndrewAnnex]

Description

changes hiedr2mosaic.py to retain (not remove) output files from hijitreg calls.

Related Issue

none

Motivation and Context

I wanted to inspect the flat files/replicate some jitter plots for hirise images I have seen out there that I believe are directly produced from these files. For a more complete way to debug hiedr2mosaic it makes sense to keep these files anyways, so it looks like this was just an oversight.

How Has This Been Tested?

nope but I doubt anything is wrong with it

Types of changes

• Bug fix (non-breaking change which fixes an issue)

Checklist:

doesn't look like anything from the checklist applies

Licensing:

This project is released under the LICENSE.

• I dedicate any and all copyright interest in my contributions in this pull request to the public domain. I make this dedication for the benefit of the public at large and to the detriment of my heirs and successors. I intend this dedication to be an overt act of relinquishment in perpetuity of all present and future rights to this contribution under copyright law.

[oleg-alexandrov]

Ross, you are welcome to pull it in any time you wish.