SetDefaultParameter mangles strings with whitespaces

[veprbl]

In EICrecon, we end up having to implement workarounds like eic/EICrecon#575, and those are only possible because our problem allows for strings without spaces to be interpreted correctly.

[faustus123]

I am unable to track this down fully right now so just writing some notes:

This was brought up previously in eic/EICrecon PR 472 and was addressed in PR #191 .

It should be getting checked with the test here:

JANA2/src/programs/tests/JParameterManagerTests.cc

Line 96 in 0f4f56b

// string with spaces

It's not clear what is different in EICrecon from the JANA test so will need to be tracked down starting with a reproducing example from there.

[AyanRoy16]

Hello @wdconinc ,

We added the test case that shows that a c++ command is correctly parsed when provided as a string input to JParameter. Let me know if there is something that we are missing.
PR: #248
cc. @nathanwbrei @faustus123