ISPN-5036 ispn-remote tests and ispn-embedded improvements

infinispan-remote: added basic remote cache test, remote cache store test, remote query tests with standalone samples

+ added also marshalling tests into infinispan-embedded

(I will be on PTO until the end of this year, @holmistr can fetch my commit, do necessary changes and issue adjusted PR as he will be sending tests for infinispan-embedded-query soon.)