Fixed the bug that the research project could not be added correctly.

Adapt to stellaris 3.0.x.
A more refined difficulty control mode has been added.
Added the function of ancient knowledge and research of ancient ships.
Added subsystem functions for some ancient ships.
The trigger requirement of part of the content is changed to research points instead of researcher jobs, which is compatible with other mod's research point production methods.
The ancient spires of the Gamma Area will provide researcher jobs.
Added the industrial segment of the ring world and the corresponding colony type.
Starlight II can be incorporated into the fleet and can be ordered to attack Leviathan automatically.
Increased the effect of psionic weapon repeatable technologies.
The psionic signal station will provide additional encryption and decryption capabilities.
Ancient astronomical observatories will provide additional intelligence bonuses.
Some special effects have been updated.
Fixed some localization errors.

Fixed the bug of data overflow caused by some modifier.
Aura effect of some ships is weakened.

Fixed the bug that some ships of gamma installation defensive system could not be spawned correctly.
Fixed part of the ring world triggers bug.
Reduce the damage of ships in easy difficulty.

Fixed the bug that events in beta area may be triggered by special countries (such as crisis factions).

Fixed the bug that the relay station in beta area could not be built in shipyard.

Fixed the bug that the ancient turret in delta area could not be deployed when it was built by shipyard.
Fixed the bug that the flag was not removed after the deployment of ancient turret in delta area.
Fixed the bug that the ancient construction section of delta area was not initialized after unlocking.
The psionic protection measures in the beta area can more effectively protect the population from being killed.

Fixed a bug that might accidentally connect an existing isolated system to new system when creating new systems.
Added the ability to build tactical support ships to ancient construction facilities.