Make it easier to configure operations

[dunglas]

Q	A
Bug fix?	no
New feature?	yes
BC breaks?	no
Deprecations?	no
Tests pass?	yes
Fixed tickets	n/a
License	MIT
Doc PR	todo

Before:

/**
 * @ApiResource(
 *     collectionOperations={
 *         "get"={"method"="GET"},
 *         "post"={"method"="POST"}
 *     },
 *     itemOperations={
 *         "get"={"method"="GET"}
 *     }
 */

Now:

/**
 * @ApiResource(
 *     collectionOperations={"get", "post"},
 *     itemOperations={"get"}
 */

Before:

/**
 * @ApiResource(
 *     attributes={"access_control"="has_role('ROLE_USER')"},
 *     collectionOperations={
 *         "get"={"method"="GET"},
 *         "post"={"method"="POST", "access_control"="has_role('ROLE_ADMIN')"}
 *     },
 *     itemOperations={
 *         "get"={"method"="GET", "access_control"="has_role('ROLE_USER') and object.getOwner() == user"}
 *     }
 */

Now:

/**
 * @ApiResource(
 *     attributes={"access_control"="has_role('ROLE_USER')"},
 *     collectionOperations={
 *         "get",
 *         "post"={"access_control"="has_role('ROLE_ADMIN')"}
 *     },
 *     itemOperations={
 *         "get"={"access_control"="has_role('ROLE_USER') and object.getOwner() == user"}
 *     }
 */

Also includes unit tests for existing features of OperationResourceMetadataFactory, support for YAML and XML and various minor improvements.

[lyrixx]

👍 for the UX ;)