Put upper version bound on which modules are instrumented

As agreed in #514, we should put an upper bound on the major version for which versions of a package is instrumented. Today this is done for some of the packages we instrument but not others.

It should also be possible for the user to exceed this bound using a new config option called `instrumentUnsupportedVersions` that takes a list of modules whos upper bound should be ignored (lower bound should always be adhered to).

Example:

```
ELASTIC_APM_INSTRUMENT_UNSUPPORTED_VERSIONS=mssql,redis
```