* fix(std/IntList): avoid a complete scan of the list in the binarySearch

When the `binarySearch` function reaches a range smaller than 65 elements, the function `scanSearch` is called to scan sequentially the elements which is fast than continuing the binary search.
But the scanSearch doesn't take in account the current range considered [low, high[ and completely scan the list which defeat the purpose of the binary search algorithm

* fix(DirectLongList): apply the same performance optimization for binarySearch

Fixed #492 

When table lock not successful, throw EntryUnavailableException so that the operation to be retried, similarly as writing is retried. (#695)

* fix(sql): fixed #691

* Remove Assert errors from RetryIODispatcherTest logs when the server response is expected to be different on some requests.

* Prevent IODispatcherTest.testTwoThreadsSendTwoThreadsRead from hanging forever on failures

BlockWriter to facilitate column-wise ingestion and replication

- refactored function cache to parse function signature only once and support array types
- refactored function parser to use function descriptor instead of parsing string again
- refactored function parser to match array types correctly
- refactored function parser not to create constants prematurely but create constant once against to level function. This leads to fewer allocations
- added generic StrArrayFunction and introduced [] operator for dereferencing string arrays
- created "current_schemas" function that is required for PG metadata
- fixed memory leak in PGJobContext
- created and tested "replace(string, from, to)" function for string arguments. It is required by PG metadata queries. Added tests
- implemented "function call" dereference, e.g. f().x in ExpressionParser
- added ability to execute SQL in select clause (doesn't make sense? read details)

PostgresSQL metadata SQLs sometimes look like:

```sql
select a, (select a,n,c from x).n, c from y
```

We now support this sort of query and resolve '.n' to column name in the cursor.

- fixed tests broken by new JDK release