first support for meta-annotations for the integration tests

Issue: SPR-7827

prior this commit, there was no support for meta-annotations in the Spring Intergation tests, now the @ContextConfiguration annotation is searched also in meta-annotations.

Eg: you can write:
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@ContextConfiguration([...]) // config for HSQLDB environment
public @interface InRamEnvironment
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@ContextConfiguration([...]) // config for common-core part
public @interface CommonCoreIntegrationTest
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@CommonCoreIntegrationTest
@InRamEnvironment
public class OneBatchTest {

[...] // actual test methods