This commit adds additional core LTI 1.3 and LTI Advantage variables to the LTIConfiguration model. The additional core LTI 1.3 variables are lti_1p3_oidc_url, lti_1p3_launch_url, lti_1p3_tool_public_key, and lti_1p3_tool_keyset_url. The additional LTI Advantage variables are lti_advantage_enable_nrps, lti_advantage_deep_linking_enabled, lti_advantage_deep_linking_launch_url, and lti_advantage_ags_mode.

This commit also adds a configuration type to the LtiConsumerXBlock to support the storage of these LTI variables on the LTIConfiguration model (i.e. the database) instead of the xBlock itself.

Changes that allow the use of this configuration option are behind the lti_consumer.enable_database_config CourseWaffleFlag.

This adds support for loading LTI 1.1 configurations from external
sources using openedx-filters. It allows the users to select the
configuration provided by the filter and configure the component without
explicitly entering any details.

refactor: Rename CourseEditLTIFieldsEnabledFlag to CourseAllowPIISharingInLTIFlag and use it for LTI1.3
This commit renames the CourseEditLTIFieldsEnabledFlag to CourseAllowPIISharingInLTIFlag since the aim is to expand its scope to all LTI-related PII sharing. It also removes the current LTI1.3 waffle flag for PII sharing.

* Improve content presentation and add multiple content display support

This commit:
* Improves LTI content presentation handling, and correctly displays LTI DL content in the LMS
* Adds support for presenting multiple DL content items on the same block

* Addressing review comments

* Nits

* Improve test and fix issue

[BD-24][TNL-8072]

* Improve logging and error message presentation

* Add full deep linking content data on studio

* Internationalize LTI 1.3 templates

* Add translation tooling

Signed-off-by: Giovanni Cimolin da Silva <giovannicimolin@gmail.com>

* Update translations

* Address review comments

* Additional logging improvements

* Address review comments, fix test

Signed-off-by: Giovanni Cimolin da Silva <giovannicimolin@gmail.com>

* Implement ltiResourceLink content presentation

Signed-off-by: Giovanni Cimolin da Silva <giovannicimolin@gmail.com>

* Add tests

* Fix serializer required fields issue

Signed-off-by: Giovanni Cimolin da Silva <giovannicimolin@gmail.com>

* Update version and changelog

This implements the endpoint that LTI tools use to return the deep linking configuration to the LMS, along with the `ltiResourceLink` type to allow testing with demo tool.

Signed-off-by: Giovanni Cimolin da Silva <giovannicimolin@gmail.com>

Remove the OIDC view from XBlock and return OIDC url directly.

* Move LTI 1.3 Key management to model

This:
- Removes the need to load the modulestore on every public keyset endpoint call.
- Simplifies the block structure and parent method overrides.
- Removes private key, client id and related parameters from XBlock fields

It also includes a migration from the data stored in the block to the model.

* Cleanup unused test helpers

* Version bump

* Addressing review comments

This change moves the LTI configuration retrieval to
a Django model that will LTI configuration.
The current model proxies back the to blocks to keep
backwards compatibility.

See reasoning for change at:
https://github.com/edx/xblock-lti-consumer/blob/master/docs/decisions/0001-lti-extensions-plugin.rst