Add Solve and Reset Buttons to TSP fullscreen mode

[ablondal]

[ablondal]

Won't fix this for now, this issue will require refactoring of some of the TSP code.
See below:

In RoutingMachine.js in fetchPath(), only the lines for the main graph (those that are successfully fetched in getRoutingCallback()) have the 'tspSolvedEvent' event listener attached.
When a solution is sent from the backend, tspSolveRequest.js will fire 'tspSolvedEvent' on all the lines, and those that are turned red (in TSPstate.js, and stored in variables) will have an additional event: 'reset' added to them (to reset them to blue).
Since the FullScreen menu is closed when the map is solved for and resetted, they don't need the event listeners, they just update based on the previously fetched lines which are stored in TSPstate.js