CLOVER-energy/CLOVER, CLOVER v5.0.4, Grid prioritisation functionality bugfix

Grid prioritisation enables energy to be first drawn from the grid, with the installed solar-diesel-battery system being used to supplement the community's demands at times where the grid is unavailable. This is as opposed to the standard "self-generation" mode of operation, whereby energy is first taken from the installed solar-diesel-battery system, with the grid used to supplement this.

A bug was identified, #54, whereby this calculation was not being carried out correctly. This was addressed with #55 and #96 and was released in #106 .