Update waves

Created by: acrovato

Context

This pull request brings the last developments from the flow module as well as some upgrade to waves.

Major changes in flow

• flow is now able to compute 3D flows
• The Jacobian (tangent) matrix for the Netwton method is now fully analytical
• The adjacent elements identification is now based on ```std::unordered_set````

Major changes in waves

• tbox and fwk are now included in a namespace
• waves is now fully included in a namespace
• All elements now have a private memory (Mem) which can be publicly accessed
• All elements now have a cache including Gauss points (Gauss) which can be publicly accessed
• MshDeformation now uses a linear elasticity solver
• MshCrack class implemented (creates duplicate internal boundaries in meshes)

Test

The ctest battery has been run on gaston, 100% tests passed under 110s.

Future work

• Use automated indentation rules for the whole code
• Move methods using VTK outside of MshData
• Clean tbox (mainly MshData, Tri3, Tera4 and Hex8)

flow/models/cylinder3.geo

@@ -186,7 +186,7 @@ Mesh.Smoothing = 10;
 Mesh.SmoothNormals = 1;
 
 // Physical
-Physical Line("teTip") = {21};
+Physical Line("teTip") = {21, 62};
 Physical Line("wakeTip") = {62};
 Physical Surface("cylinder") = {1, 2, 5, 6};
 Physical Surface("cylinder_") = {3, 4, 7, 8};
@@ -199,3 +199,4 @@ Physical Surface("farfield") = {15, 16, 17, 18};
 Physical Surface("wake") = {19};
 Physical Volume("field") = {1};
 Physical Volume("field_") = {2};
+