DBAL-551: [GH-340] Added driver map getter

[doctrinebot]

Jira issue originally created by user @doctrinebot:

This issue is created automatically through a Github pull request on behalf of stefk:

Url: #340

Message:

We can think of several situations where a read access to the supported drivers is required. I personnaly need it in the following use cases :

• Validating a driver choice in a mutli-platform application installer
• Generating migration classes for all the available platforms

This PR just adds a getter for that list. As it is a harmless and non-BC-break change, it would be great if it could be merged also into the 2.3 version.

[doctrinebot]

Comment created by @doctrinebot:

A related Github Pull-Request [GH-340] was closed:
#340

[doctrinebot]

Issue was closed with resolution "Fixed"

[doctrinebot]

Comment created by @doctrinebot:

A related Github Pull-Request [GH-340] was closed:
doctrine/common#340

[github-actions]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.