Resolve "Epic: Prepare exposure-initializer for the 24.07 release"

Closes #44 (closed)

Merging:

• The extended occupancy information (e.g. COM2 instead of only COM) needs to be used during the exposure import (!47 (merged)).
• Introduce commits of reference assets in batches (!49 (merged))

\approve @laurens @chengzhi

\fyi @tara @pdlmora