add conservation law sediment bottom

1 job for sediment2d in 31 minutes and 35 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Test
failed makedg #10559

00:31:35

 
Name Stage Failure
failed
makedg Test There is an unknown failure, please try again

98% tests passed, 1 tests failed out of 41

Total Test time (real) = 1603.79 sec

The following tests FAILED:
9 - modules/atmosphere/tests/GravityWavesSphereParallel (Failed)
Errors while running CTest
ERROR: Build failed: exit code 1