[hack] Improve error message in `hh_shared.c` when `ignore_hh_version` is not set
[hack] Improve error message in `hh_shared.c` when `ignore_hh_version` is not set

Summary:
Before:

```
Uncaught exception:

  SharedMem.C_assertion_failure("hh_shared.c : 2425")

Raised by primitive operation at file "src/heap/sharedMem.ml", line 219, characters 30-74
Called from file "src/facebook/hh_fanout/hh_fanout.ml", line 111, characters 4-105
Called from file "src/facebook/hh_fanout/hh_fanout.ml", line 129, characters 11-40
Called from file "src/facebook/hh_fanout/hh_fanout.ml", line 140, characters 9-16
```

After:

```
Uncaught exception:

  (Failure
   "There was a build version mismatch when loading dep table SQLite database (and `ignore_hh_version` is not set). Not continuing with loading.")

Raised by primitive operation at file "src/heap/sharedMem.ml", line 219, characters 30-74
Called from file "src/facebook/hh_fanout/hh_fanout.ml", line 111, characters 4-105
Called from file "src/facebook/hh_fanout/hh_fanout.ml", line 129, characters 11-40
Called from file "src/facebook/hh_fanout/hh_fanout.ml", line 140, characters 9-16
```

Reviewed By: vsiles

Differential Revision: D18703375

fbshipit-source-id: 44ac9e9c1c700d7b2fb89a215752a88919c32618

nmote/flow,nmote/flow,nmote/flow,nmote/flow,nmote/flow,nmote/flow,nmote/flow