Implement GlobalP2Mapper for 3d grids even without dune-parmg

This allows to enable filmonsubstratetest.cc unconditionally.

added 2 commits

• 8e4567d2 - Implement GlobalP2Mapper for cube grids without dune-parmg
• 2a444962 - Test filmonsubstratetest.cc even when there is no dune-parmg

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added 2 commits

• f2f3b361 - Test filmonsubstratetest.cc even when there is no dune-parmg
• 93b286d0 - Increase TIMEOUT for harmonicmaptest and cosseratcontinuumtest.cc

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added 3 commits

• 78cc500c - Increase TIMEOUT for harmonicmaptest and cosseratcontinuumtest.cc
• 1428d2d3 - Implement GlobalP2Mapper for cube grids without dune-parmg
• f879b290 - Test filmonsubstratetest-mixed even when there is no dune-parmg

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added 1 commit

• 62da2aa9 - Don't let use of Communicators depend on GRID_DIM

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added 2 commits

• 8fd1da76 - Don't let use of Communicators depend on GRID_DIM
• b78b05c9 - Test filmonsubstratetest even when there is no dune-parmg

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added 1 commit

• d9ca14db - Test filmonsubstratetest even when there is no dune-parmg

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added 1 commit

• 2af025bb - Test filmonsubstratetest even when there is no dune-parmg

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added 1 commit

• c2622f1f - Test filmonsubstratetest even when there is no dune-parmg

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added 1 commit

• 061d0d65 - Test filmonsubstratetest even when there is no dune-parmg

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added 1 commit

• d8965ca1 - Test filmonsubstratetest even when there is no dune-parmg

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merged

mentioned in commit 67405f31