Sector join as Member State

improved decentralisation
+ some minor improvements/fixes
+ performance opt (perk event)
+ New feature: exclude systems from decentralization perk (decision focus on system star, only when the special project is available).
https://github.com/F1r3Pr1nc3/Decentralized-Empires/commit/41c909444fc14db82e8291bf5f51c3874f7424a1

sorry this was beta, with Script Error: Invalid context switch [owner] from... [planet], file: common/decisions/regentmaker_decisions.txt line: 94, Scope: type=planet

+ mod flag "gf_regentmaker_active"
+ smaller edict icons
+ text auth icons

* more specific on member state operations (so more compatible with other mods like ZoFE) thx to Spider for hints.
https://github.com/F1r3Pr1nc3/Decentralized-Empires/commit/98d870ad6f5873fbf8b6a38688082cfaa82cfaad

+ specific subject selector - thx to MrFunEGUY
+ some minor improvements (subject selection)
+ Vassals Expanded and Reworked support. (by MrFunEGUY)
https://github.com/F1r3Pr1nc3/Decentralized-Empires/commit/acd141d2cbc934c45f5ee376cad5607e9a2b6aa1

improve compat. - fix member state spam for non default empire types (from other mods like "Interstellar Incorporated: Space Corp [3.0]", thx to Spider for report).
https://github.com/F1r3Pr1nc3/Decentralized-Empires/commit/54a134ab83b7b89f2e57d40d37cc00361d4f9e41

v.3.0.* ready
https://github.com/F1r3Pr1nc3/Decentralized-Empires/commit/f31bf5f9a99c3ad6b443c6249e0f7a7bd73912ea

+ German loc
* convert global effect to better event
https://github.com/F1r3Pr1nc3/Decentralized-Empires/commit/b962fe8976fde3903b0aafb7b09f9b0e6d11e960