DM-12205 Add patch for unencoded cpp file

[parejkoj]

No description provided.

[timj]

This might already be fixed upstream. We are deliberately using an old version because of a dependency change. I wonder why this works on Jenkins but fails with your compiler.

[parejkoj]

Ah, yes, it does look like it's fixed upstream:

https://github.com/rmjarvis/TreeCorr/blob/releases/3.3/setup.py#L175

As to why Jenkins works but not my machine, it's going to have something to do with the difference between running cc --version on lsst-dev:

$ cc --version
cc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-16)
Copyright (C) 2015 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

vs. on my Ubuntu desktop:

$ cc --version
cc (Ubuntu 5.4.0-6ubuntu1~16.04.5) 5.4.0 20160609
Copyright (C) 2015 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

but I don't feel like trying to figure out what setup.get_compiler is actually doing...