[action] use two most recent versions of golang in ci

Bump github.com/di-wu/xsd-datetime from 0.0.0-20190813080539-55a8ba70aa69 to 1.0.0

- Add dependabot automerge workflow
- Add triage workflow
- Add codeowners file

Bumps [github.com/di-wu/xsd-datetime](https://github.com/di-wu/xsd-datetime) from 0.0.0-20190813080539-55a8ba70aa69 to 1.0.0.
- [Release notes](https://github.com/di-wu/xsd-datetime/releases)
- [Commits](https://github.com/di-wu/xsd-datetime/commits/v1.0.0

)

---
updated-dependencies:
- dependency-name: github.com/di-wu/xsd-datetime
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

First pass at common CI

Return empty resources instead of null

Despite that the SCIM spec allows both null an [], some IdPs do
not manage properly null in all the cases. Returning an empty
array if GetAll does not return any resource is more compatible.

Add support for a noTarget error on Patch operations.

RFC7644 sections 3.5.2.2 and 3.5.2.3 specify cases when a noTarget
error must be returned.

The json.Decoder is configured with UseNumber(), and because of this
all the numbers are decoded to json.Number (string) and were failing
in the validation.

Fix PATCH validation bug, replace can omit path

updated readme

Expose request to handler

Marshal SubAttributes in schema

Fixes #67

Fix linting issue

Strict linting, change Json to JSON

refactored handlers and marshaling

PATCH Support

Filtering can be supported

Committing progress

Add basic PATCH support

Committing progress on patch support

Write test for patch handler

Add basic test for PATCH support

Add more validation around the contents of the PATCH request

Test some other failure scenarios

Add filter validation comment

Fix lint errors

Allow consumers to decide whether they support filtering or not

updated guidelines

support pagination

* Expose scim filter expression
* Switch ListResponse to Page object and only expose necessary params
* Fix other insconsistencies

Fix lint error and consolidate count settings

Expose public ListResponse for responding with proper pagination

Fix error formatting

Update docs

Add test for specific startIndex and count

Fix the MarshalJSON receiver

Set a max count and test it

Fix Auth Scheme Marshalling