renamed unit of measurement factory file.
added check for empty stock count refs item:672
Merge branch 'develop' into refactor/fix-graph-disappearing
Merge pull request #444 from musamusa/refactor/fix-graph-disappearing

Refactor/fix graph disappearing
added TCW 2000 SDD and Dulas VEC65-2 refs item:671
removed unnecessary check for app-config
adds getStringUuid.
code re-format.
storage service code reformat
adds getStringUuid for extraction of uuid.
adds getStringUuid to product type factory
adds getStringUuid to product Profile
adds catch block to get all waste count.
removed unnecessary code and add getStringUuid
code clean up
adds getStringUuid to product category factory
adds getStringUuid uses getStringUuid at presentation factory
renamed presentation factory file
code clean up.
adds spinning save button to waste count form.