Agsconfig

New Features
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- Added support for the feature server setting that allows geometry updates without M-values (`allow_geometry_updates_without_m_values`)

Fixes
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- Improved SDDraft editing for service extensions on drafts created in ArcGIS Pro (particularly image service drafts); this is just an initial set of improvements that will be expanded upon in future releases

Fixes
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- Fixed setting credits/copyright on image services/service definition drafts

Fixes
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- Removed invalid messaging level for GP services
- Fixed path for executionType for GP services

New Features
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- Added support for true curve settings in feature services

- Relaxed `future` requirement

New features
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- Added support for setting raster functions on imagery services