Add support for NWB schema 2.2.5

[rly]

The current release of PyNWB, version 1.3.1, supports nwb-schema version 2.2.4. This PR adds support for nwb-schema bugfix version 2.2.5.

This PR tracks the dev branch of nwb-schema to ensure that changes in nwb-schema are compatible with PyNWB or are accompanied with corresponding changes in PyNWB. Those changes in PyNWB should be merged into this branch.

• Update PyNWB to work with changes in nwb-schema:

  • Add schema validation CI.
  • Fix incorrect dims and shape for ImagingPlane.origin_coords and ImagingPlane.grid_spacing, and fix incorrect dims for TwoPhotonSeries.field_of_view.

• Add integration tests that use ImagingPlane.origin_coords and ImagingPlane.grid_spacing

• Run validation tests

• Update changelog

• After new version of nwb-schema is released, update the nwb-schema submodule to point to latest release: cd src/pynwb/nwb-schema/, git checkout dev, git pull origin dev, git fetch --tags, git checkout dev, cd ../../.., git add ., git commit -m "Update nwb-schema submodule to [new_release], and git push

After merging:

• This branch should be merged into dev without squashing commits. Rebase if necessary.
• Prepare for immediate bugfix release of PyNWB 1.3.2