Allow BuildSpeed Booster that behaves like FactoryPlant

[deathreaperz]

First check

• The suggestion is NOT related to functionality of Ares, HAres, Kratos or any other YR engine extension.
• The suggested feature / enhancement is NOT implemented in Ares/Phobos yet and the existing possibilites are not viable or good enough to achieve the wanted result.
• I agree to elaborate the details if requested and provide thorough testing if the feature is implemented.
• I added a very descriptive title to this issue.
• I used the GitHub search and read the issue list to find a similar issue and didn't find it.
• I thought out how the feature / enhancement should work and described it in the most detailed and clear way.

Description

Allow a structure which behaves like Industrial Plant that can customize owner's BuildSpeed without creating more factories.

INI code

[Building]
BuildTimeBooster= (bool, def no)
AircraftBuildTimeMult= (double - mult. Def 1.0)
BuildingBuildTimeMult= (double - mult. Def 1.0)
InfantryBuildTimeMult= (double - mult. Def 1.0)
VehicleBuildTimeMult= (double - mult. Def 1.0)

[Techno Type]
BuildTimeBooster.Multiplier= (double - mult. Def 1.0)

Additional context

No response