New shield modules

We need some different passive and active shield modules to help change things up and allow for more creative fittings. For example, there is an adaptive passive armor module that has 20% resists across the board, but that same module does not exist for shields. Shields only have damage-specific passive modules. An Omni-resist passive module would come in very handy. Also the ability to have a variety of mixed types of damage resist shield modules, both passive and active. For example a passive shield module that is resistant to therm/kin only, or an active module that is resistant to em/therm only.