Merge pull request #1 from sean-duffy/streaming-api

Streaming api
Remove slicer style (xref sean-duffy/sqlite2xlsx#1)
Move <dimension> tag to the right place
Remove theme-based colors, be explicit
Merge pull request #2 from sean-duffy/remove-slicer-style

Remove slicer style (xref sean-duffy/sqlite2xlsx#1)
Merge pull request #3 from sean-duffy/correct-place-for-dimension

Move <dimension> tag to the right place
Merge pull request #4 from sean-duffy/explicit-color

Remove theme-based colors, be explicit
Merge branch 'compatibility-fixes' of https://github.com/sean-duffy/xlsx into sean-duffy-compatibility-fixes
Merge branch 'sean-duffy-compatibility-fixes'