Add inventoryLots to ListTypes enum.

[daveneti]

Currently List types are "ListTypes" : { "type" : "string", "example" : "germplasm", "enum" : [ "germplasm", "markers", "variants", "programs", "trials", "studies", "observationUnits", "observations", "observationVariables", "samples" ] },

Can we add inventory lot (renamed from seedlot) to the list of types. Would be "inventoryLots", as per the lower camel case convention.

[BrapiCoordinatorSelby]

related to #545