Porting to PArrays v0.3

[amartinhuertas]

Work in progress ...

• [x] Documentation.
• [x] Bump GridapDistributed version to v0.3.
• [x] Fix PeriodicBoundaryConditions test. Issue https://github.com/gridap/GridapDistributed.jl/issues/119
• [x] Run all tests with MPI.
• [x] Mock test for RedistributeGlue. We can perhaps manufacture a silly test from the packages that currently leverage RedistributeGlue, and then copy & paste the data fields of the structures in a hard-coded way.
• [x] Add RedistributeTools.jl from GridapSolvers (actually from GridapP4est) and create mock tests
• [x] Had to add functions fetch_ghost_values_cache and fetch_ghost_values! to GridapDistributed because exchange! in PArrays no longer provides the previous functionality. These functions can be waived using PVectors all the way through. TO-THINK which is more appropriate on a case-by-case basis. UPDATE: We decided to not use PVector all the way through but to keep these caches.
• [ ] What else?

Left for another future PR:

• [ ] Add FESpaces.jl (and associated tools) from GridapP4est and create mock tests

[amartinhuertas]

for the records ... the error with the Periodic BCs is here ... https://github.com/gridap/GridapDistributed.jl/actions/runs/5419584873/jobs/9852831016#step:7:16

[codecov-commenter]

Codecov Report

Merging #114 (e693b85) into master (2ed5353) will not change coverage. The diff coverage is 0.00%.

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@@           Coverage Diff           @@
##           master    #114    +/-   ##
=======================================
  Coverage    0.00%   0.00%            
=======================================
  Files          10      11     +1     
  Lines        1694    1982   +288     
=======================================
- Misses       1694    1982   +288     

Files Changed	Coverage Δ
src/Adaptivity.jl	0.00% <0.00%> (ø)
src/Algebra.jl	0.00% <0.00%> (ø)
src/CellData.jl	0.00% <0.00%> (ø)
src/DivConformingFESpaces.jl	0.00% <0.00%> (ø)
src/FESpaces.jl	0.00% <0.00%> (ø)
src/Geometry.jl	0.00% <0.00%> (ø)
src/MultiField.jl	0.00% <0.00%> (ø)
src/TransientFESpaces.jl	0.00% <0.00%> (ø)
src/Visualization.jl	0.00% <0.00%> (ø)

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[amartinhuertas]

Run all tests with MPI.

For the records, I run all MPI tests on my local machine, and as expected, only the periodic BCs test fails.