[map] Add missing counts of misses and evictions to LocalMapStats

[kennymacleod]

The LocalMapStats interface has a getHits method, but this isn't much use in and of itself. It needs a corresponding getMisses method to give it come context. This method used to be present in hazelcast 2.x, but seems to have been inadvertently deleted in 3.x.

While we're at it, we also need a getEvictions statistic to get a count of the number of elements that have been evicted (due to TTL or too-many-items, for example).

[blakeday]

Also, how do you get operations per second in the latest version?

[PhillipMek]

@mmedenjak, is any updates on this issue? It will be cool to add map eviction and expiration events monitoring in Management Center.

[mmedenjak]

No, there was not much demand for this and we worked on higher priority items but we're happy to accept a PR from the community.

[JaegerJochimsen]

@mmedenjak Hi there, are there any updates?