Removed vtkMatplotlibUtilities class

It is no longer needed.

Change-Id: Ia60dfec4b394355e7eda848a19dd12c28a9d3a37
Pause simulation and continue for ParaView Live Catalyst.

Implementation includes user feedback (menus and catalyst icon).
Add a breakpoint (pause simulation in the future) to Catalyst Live.

Change-Id: I0839517f20947a63c175ace4fb27071afdd0916e
Push the state to the server when simulation is paused.

Also, move comunication between server and client in separate functions.

Change-Id: Iac94886138e2e2e3d030f924665e319f28b3e67a
Add the simulation timeStep as a choice when setting a breakpoint.

Change-Id: I84ad2fe37b6c6edbf273c806162b9c3f732291ca
Add Catalyst - Live test.

Change-Id: I44d46de149bfe1b39786e62f9ac8e1a17322ff93
Create a new doxygen module LiveInsitu.

Add relevant classes to the new module.

Change-Id: I432999ebdebb99f6dde3ce955ddbe26f9bc021ce
Merge topic 'live-breakpoint' into next

782b7222 Create a new doxygen module LiveInsitu.
bccc0fa6 Add Catalyst - Live test.
ef916df5 Add the simulation timeStep as a choice when setting a breakpoint.
b0906e82 Push the state to the server when simulation is paused.
f46c057a Add a breakpoint (pause simulation in the future) to Catalyst Live.
d567064e Pause simulation and continue for ParaView Live Catalyst.
f43be67c Removed vtkMatplotlibUtilities class