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/n0012-3_.geo

@@ -268,45 +268,45 @@ Line(27) = {1041, 1042};
 Line(28) = {1044, 1043};
 
 // wing
-Curve Loop(1) = {1, 6, -3, -5};
+Line Loop(1) = {1, 6, -3, -5};
 Surface(1) = {-1};
-Curve Loop(2) = {2, 5, -4, -6};
+Line Loop(2) = {2, 5, -4, -6};
 Surface(2) = {-2};
 
 // symmetry
-Curve Loop(3) = {23, 7, 8, 9, -26, -1};
+Line Loop(3) = {23, 7, 8, 9, -26, -1};
 Plane Surface(3) = {-3};
-Curve Loop(9) = {24, 13, 14, 15, -25, -3};
+Line Loop(9) = {24, 13, 14, 15, -25, -3};
 Plane Surface(9) = {9};
-Curve Loop(4) = {26, 10, 11, 12, -23, -2};
+Line Loop(4) = {26, 10, 11, 12, -23, -2};
 Plane Surface(4) = {-4};
-Curve Loop(10) = {25, 16, 17, 18, -24, -4};
+Line Loop(10) = {25, 16, 17, 18, -24, -4};
 Plane Surface(10) = {10};
 
 // upstream
-Curve Loop(5) = {28, -15, -20, 9};
+Line Loop(5) = {28, -15, -20, 9};
 Plane Surface(5) = {5};
-Curve Loop(6) = {21, -16, -28, 10};
+Line Loop(6) = {21, -16, -28, 10};
 Plane Surface(6) = {6};
 
 // downstream
-Curve Loop(7) = {27, 13, -19, -7};
+Line Loop(7) = {27, 13, -19, -7};
 Plane Surface(7) = {-7};
-Curve Loop(8) = {22, 18, -27, -12};
+Line Loop(8) = {22, 18, -27, -12};
 Plane Surface(8) = {-8};
 
 // farfield
-Curve Loop(11) = {8, 20, -14, -19};
+Line Loop(11) = {8, 20, -14, -19};
 Plane Surface(11) = {11};
-Curve Loop(12) = {11, 22, -17, -21};
+Line Loop(12) = {11, 22, -17, -21};
 Plane Surface(12) = {12};
 
 // wake
-Curve Loop(13) = {23, 27, -24, -5};
+Line Loop(13) = {23, 27, -24, -5};
 Plane Surface(13) = {13};
 
 // internal
-Curve Loop(14) = {26, 28, -25, -6};
+Line Loop(14) = {26, 28, -25, -6};
 Plane Surface(14) = {-14};
 
 // field