Compile fix for scene.cpp

Fix for default.scene

Add initial Tracy profiling macros

Move AllowAddresses out of Interface into Server in openspace.cfg to circumvent potential stack corruption
Make lua_state not being copied

Instrumentation is disabled on default, but can be enabled in CMake

* Expose `CMAKE_BUILD_TYPE` to cmake gui (for single configuration generators)
* Use generator expressions to get debug vs release mode
* Fix mac app icon

 * Updated GDAL version to 2.4.1
 * Add vtune performance commands
 * Add Nvtools performance commands
 * Add warning if GDAL dataset could not be loaded

  * Improve cmake errors
  * Calling doMessageLoopWork more often to increase gui performance
  * Introduce frequent callbacks
  * Restructure browser update callbacks
  * Cleanup cef speedup
  * Add flag to toggle updating browser between renderable calls
  * CEF should not be used in single process mode
  * Update CEF version
  * Postbuild step for finding framework from web helper
  * Load libcef dynamically to fix issue with CEF update
  * Only include dynamic library loader on mac
  * Improve keyboard mapping support on MacOS
  * Add arrow keys
  * Rename manifest
  * Fix bug with missing blinking cursor in text fields
  * Bump minimum cmake version
  * CEF fixes: Runtime and correct helper path
  * Be true to actual sandbox compatibility specified by CEF
  * Cleanup

* Cleanup
* CMake cleanups
* Update current year
* Update copyright header
* Use script to return list of all modules
* Update credits, license and ghoul

Do not disable RTTI on CEF targets
Do not for Unicode on CEF targets
More graceful handling of torrent classes in Sync module

 * Merge experimental session recording branch
 * Merge new CEF-based webgui branch

  * Update node packages, download nodejs in build process, start server from openspace process
  * Patch CEF cmake automatically
  * Build webserver automatically
  * Work on CMake for WebBrowser, Webgui and CefWebGui
  * Map key modifiers to CEF
  * Smooth time interpolation in webgui
  * Automatically focus on search field in filter lists
  * Move webgui code to external repositories
  * Use asset system to distribute webgui
  * Remove webgui from main repository
  * Add support for right click in webgui and improve timetopic
  * Resolve cmake policy warning
  * Add relative time interpolation to lua interface
  * Sanitize json error message before logging error. Workaround for #736
  * Added gui properties to scene graph nodes
  * Add version topic
  * Add shortcuttopic
  * Add ability to disable rendering of cefwebgui
  * Don't do message loop work if there is no browser.
  * Set correct path to nodejs on unix
  * Message loop work in presync
  * modifications for shortcuts in gui, added names for shortcuts
  * Set properties via lua scripts
  * Allow gui grouping for shortcuts
  * Add gui paths keybindings
  * Blocking keyboard callbacks when webgui has keyboard focus in an editable field
  * Allow disabling of WebBrowser and CefWebGui
  * Make it possible to hide GUI
  * Get rid of redundant dashboard items if web gui is used
  * Hide WebGUI on slave nodes
  * Hide WebGUI on main rendering window if a GUI window exists
 * Enable WebGUI on default unless it is overwritten in the openspace.cfg
  * Add guiName for propery owners in socket api

Update GDAL to 2.3.2

 * Move SGCT external library from ext/sgct to apps/OpenSpace/ext/sgct
 * Remove all GLFW dependencies from openspace-core
 * Add MinVR dependency
 * Add new executable OpenSpace-MinVR that uses MinVR instead of SGCT

* Sweeping CMake cleanup
* Cleaning up message log in CMake

Web GUI from Klas Eskilson (three new modules: webgui, webbrowser and cefwebgui)
Parallel connection refactorization
Wormhole server added to the main repository
Transfer function editor work from Cristoffer Särevall
Update ghoul

* Various fixes for Unit tests
* Add regression test for #517
 * Enable better handling of OptionProperties if no options are provided
 * Fix bug that left Lua state unclean after calling vector and matrix properites fromLuaState values
 * Fixed issues where numerical properties would not serialize and deserialize correct values
 * Added unit tests for OptionProperty
 * Fix unit test crash in SpaceManager

Update CREDITS file

Correctly layout tooltips in space/time widget
Fall back on old Digital Universe stars
Move settings of tooltip delay into each GuiComponent

Fix AssImp CMake warnings

Update SGCT reference
Update Ghoul reference
Prevent spherical grid to recreate grid each frame
Add version and commit information (closes #395)

* Rename OnScreenGui module to ImGui
* Support multiple external module folders (closes #31)
* Cleaning up CMake files
  * Restructure application specification
  * Add parameter for library mode to all modules
  * Add functions to handle global variable state
* Misc/remove warnings (#383)
* Increase build timeout and do a clean rebuild every commit