Multiple types of points to be spent on projects

**What do you want to see?**
We currently have research points which can be spent on research projects, and eventually we'll add intelligence points to spend on intelligence projects. Why not open this up and allow for mod-defined point types and mod-defined project types?

**How would it help players?**
Modders could add new types of projects (such as cultural projects as originally designed for SE5, or specialized research projects that can be completed more efficiently with specialized research points). Different types of points could come from different sources, so if you want to research astrophysics you might want a black hole nearby... this could lead to emergent behavior with empires' research being guided by and also guiding their geography!

**Alternatives**
???

**Screenshots and mockups**
N/A

**Things to consider**
Should project types and point types have a 1:1, 1:many, or many:many mapping? What about multipliers for certain points being more effective than others at particular types of projects? How will the points allocation be automated if it gets that complex?

**Related issues**
N/A