Refs #10279 Added Centre parameter
Refs #10279 Bypass the test for the moment
Refs #10279 Repaired test_derivatives
Refs #10279 Fixed numerical deriv and added usage example
Refs #10279 static cast required to avoid compiler warning
Refs #10279 Fix doc warning
Merge remote-tracking branch 'origin/feature/10279_TabulatedFunction_centre_parameter'