Adds date recorded to velocity (used as t=0 in renderable) + cleanup

[WIP] SIMP version 1.9.1. Breaking changes. Refactor of entire softwareintegration module. Updates SGCT submodule to fix bug with long transfer times on sync connections.
Co-authored-by: Jacob Molin <jacobmolin@users.noreply.github.com>

* Remove debris assets that are no longer supported by celestrak
* Revert "Remove debris assets that are no longer supported by celestrak" (commit c8e5f3fd)
* Updated all satellite assets to use the new celestrak URL format

Move the Lua Console updating into the actual postSyncPreDraw function so that it gets called accuratly when GUI windows are present (closes #2141)

Prevent accidentally "checking" the folder when a folder exists with the same name as an asset (closes #2154)

* Introduce timeout to the unit tests

Co-authored-by: Jacob Molin <jacobmolin@users.noreply.github.com>

Merge branch 'thesis/2022/software-integration_dod' and 'thesis/2022/software-integration_save-session' into thesis/2022/software-integration_velocity-support

Fix isse that prevents the full range of values for the FOV slider in the configuration editor (closes #2148)

Merge branch 'thesis/2022/software-integration_velocity-support' of github.com:OpenSpace/OpenSpace into thesis/2022/software-integration_velocity-support

Added 'hasLoaded' bool in the syncable storage so that enabling properties in the renderable occurs at the correct time

Refactored NetworkEngine and PointDataMessageHandler into Data-Oriented Design to simplify development

added events for when renderables are enabled/disabled that can be used to link renderables together (#2132)

Merge branch 'thesis/2022/software-integration_velocity-support' into thesis/2022/software-integration_dop_test

Also, fix broken Terra and Aqua assets

Changes name on SIMP mesage type Disconnection to InternalDisconnection (diconnection should only be used internally)