Additional inventory lot update capabilities

A new SEED_AMOUNT_UNDEFINED inventory amount unit has been introduced that allows users to set the initial deposit of a new inventory lot to 0 (with lot transaction status automatically set as pending). This way, new lots (& corresponding labels) can be easily created in the BMS even without knowing the weight, the storage location and the amount unit that will be used.

Export transactions/Import transaction updates functionality in Manage Inventory has been expanded to also support updates to storage locations and inventory amount units of pending lot transactions in batch via an Excel file.

The storage location and balance of confirmed lot transactions can be updated in batch via the Import update balance Excel template file.