add WB_ENABLE_APP = OFF test.

[MFraters]

follow up to #686, adding a test for disabling the apps

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.23%. Comparing base (7a7066f) to head (d1cd3bb).
Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #693      +/-   ##
==========================================
- Coverage   98.24%   98.23%   -0.02%     
==========================================
  Files         107      107              
  Lines        7464     7464              
==========================================
- Hits         7333     7332       -1     
- Misses        131      132       +1     

see 1 file with indirect coverage changes

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[github-actions]

Benchmark	Main	Feature	Difference (99.9% CI)
Slab interpolation simple none	1.022 ± 0.004 (s=432)	1.022 ± 0.005 (s=451)	-0.1% .. +0.1%
Slab interpolation curved simple none	1.021 ± 0.006 (s=431)	1.024 ± 0.009 (s=452)	+0.2% .. +0.5%
Spherical slab interpolation simple none	1.169 ± 0.007 (s=369)	1.169 ± 0.006 (s=403)	-0.1% .. +0.2%
Slab interpolation simple curved CMS	1.057 ± 0.004 (s=430)	1.061 ± 0.004 (s=422)	+0.2% .. +0.4%
Spherical slab interpolation simple CMS	1.552 ± 0.008 (s=290)	1.550 ± 0.010 (s=293)	-0.2% .. +0.1%
Spherical fault interpolation simple none	1.173 ± 0.006 (s=395)	1.173 ± 0.006 (s=375)	-0.2% .. +0.1%
Cartesian min max surface	2.321 ± 0.023 (s=184)	2.323 ± 0.025 (s=206)	-0.3% .. +0.4%
Spherical min max surface	7.219 ± 0.029 (s=59)	7.214 ± 0.025 (s=68)	-0.3% .. +0.2%