Make response max/min value include the eqn number for clarity

[bartgol]

Copying body of comment in PR #1127.

Btw, I am not sure how the tests passed before. I saw this for the ISMIP test B:

2: Response 1: Solution Max Value
2: 
2:                     2.372857585175e+00
2: Response Test 1: 2.372857585175e+00 != 0.000000000000e+00 (rel 1.000000000000e-06 abs 1.000000000000e-10)
2: 
2: Sensitivities (1,0):
2: 
2:                     -8.996073943430e-05
2: 
2: Response 2: Solution Average
2: 
2:                     4.862116055279e+00
2: Response Test 2: 4.862116055279e+00 != 3.649614402659e+00 (rel 1.000000000000e-06 abs 1.000000000000e-10)

So the 2nd response was the sol max value, and it was supposed to be 0. Yet, the solution average was supposed to be 3? You can't have avg=3 if your max is 0... This makes me think that one (or both) of those responses are buggy...

Edit: the values I see are indeed not right:

3: Response 1: Solution Max Value
3: 
3:                     1.860418180231e-01
3: Response Test 1: 1.860418180231e-01 != 6.629947758970e-02 (rel 1.000000000000e-04 abs 1.000000000000e-08)
3: 
3: Response 2: Solution Average
3: 
3:                     8.060920597102e+00
3: Response Test 2: 8.060920597102e+00 != 7.944496494000e+00 (rel 1.000000000000e-04 abs 1.000000000000e-08)

The tgt avg should be 7.9, but the tgt max should be 0.06? Not right...

Originally posted by @bartgol in #1127 (comment)

[bartgol]

@jewatkins correclty pointed out that the SolutionMax response is operating on a single component of the solution, while the avg is for the whole vector solution.

His proposal of adding the eqn number to the response name seems like a good way to avoid confusion for users (like me).