Encode version in library instrumentations' package names

[mateuszrzeszutek]

Another part of #932

In this PR I changed all the library instrumentation packages -- these are breaking changes, so I figured the earlier we do this the less painful it'll be to the users. I know that at least some of them are actively used, so we'll need to spell this out in the release notes.

[trask]

can you add the list of renames in the description so I can copy-paste in the release notes?

[mateuszrzeszutek]

* `io.opentelemetry.instrumentation.apachedbcp.ApacheDbcpTelemetry` was renamed to `io.opentelemetry.instrumentation.apachedbcp.v2_0.ApacheDbcpTelemetry`
* `io.opentelemetry.instrumentation.c3p0.C3p0Telemetry` was renamed to `io.opentelemetry.instrumentation.c3p0.v0_9.C3p0Telemetry`
* `io.opentelemetry.instrumentation.graphql.GraphQLTelemetry` was renamed to `io.opentelemetry.instrumentation.graphql.v12_0.GraphQLTelemetry`
* `io.opentelemetry.instrumentation.guava.GuavaAsyncOperationEndStrategy` was renamed to `io.opentelemetry.instrumentation.guava.v10_0.GuavaAsyncOperationEndStrategy`
* `io.opentelemetry.instrumentation.hikaricp.HikariTelemetry` was renamed to `io.opentelemetry.instrumentation.hikaricp.v3_0.HikariTelemetry`
* `io.opentelemetry.instrumentation.kafkaclients.KafkaTelemetry` was renamed to `io.opentelemetry.instrumentation.kafkaclients.v2_6.KafkaTelemetry`
* `io.opentelemetry.instrumentation.oracleucp.OracleUcpTelemetry` was renamed to `io.opentelemetry.instrumentation.oracleucp.v11_2.OracleUcpTelemetry`
* `io.opentelemetry.instrumentation.ratpack.RatpackTelemetry` was renamed to `io.opentelemetry.instrumentation.ratpack.v1_7.RatpackTelemetry`
* `io.opentelemetry.instrumentation.reactor.ContextPropagationOperator` was renamed to `io.opentelemetry.instrumentation.reactor.v3_1.ContextPropagationOperator`
* `io.opentelemetry.instrumentation.viburdbcp.ViburTelemetry` was renamed to `io.opentelemetry.instrumentation.viburdbcp.v11_0.ViburTelemetry`