Describe the feature

The input window for item and fluid level emitters (and when requesting autocrafts) should support the use of the letter 'k' to indicate that the number prior to it is in the thousands.

Alternatively, a "x1000" button could be added which multiplies the currently entered amount by 1000, similar to how the current buttons add or remove a quantity. A second button "/1000" could also be added that truncates the last three digits of the number (to avoid fractions of items).

Reasons why it should be considered

This is particularly useful for fluids, which are specified in millibuckets and are usually needed in bucket quantities, and for stockkeeping large amounts of items in later phases of Omnifactory games.