New Shop section

[come219]

New shop section would include items not specific to gun/green/spirit or a mix of gun/green/spirit.

This would help "clean-up" the shop since the ordering, size managment seems to be an issue - gun tier 3 has so many items.
This may help balance items and investment timings
This introduces a new way of obtaining those 4.8k investments.

Examples:

- Universal items: soul items that split investment 3 way split

- Gun-Green items: splits investments 2 ways

- Spirit-Green items: splits investments 2 ways

- Gun-Spirit items: splits investments 2 ways

- items that give 0 investment, have no color - but strong passive

- item that doubles all investments

- item that multiplies tier 1 gun investments

- item that multiplies tier 2 spirit tinvestments

- items that give half investment

 

[come219]

- item that can choose its own investment like imbue which investment

- items that can toggle between gun/green/spirit (power treads)

 

[come219]

- items that converts all tier 2 green items to tier 1 gun items

- item that takes away investment and converts it?