Table store can cause JVM to crash if may keys are added

[RobAustin]

this relates to issue #750, TableStorePutGetTest works with 1_000 keys but fails when run with 10_000 keys, but only on some hardware.

[peter-lawrey]

When I set the number of keys to 1000000 I got the following error

#
# A fatal error has been detected by the Java Runtime Environment:
#
#  SIGSEGV (0xb) at pc=0x00007fe9615dd73b, pid=14792, tid=0x00007fe9778c3700
#
# JRE version: Java(TM) SE Runtime Environment (8.0_251-b08) (build 1.8.0_251-b08)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (25.251-b08 mixed mode linux-amd64 compressed oops)
# Problematic frame:
# J 1216 C2 net.openhft.chronicle.wire.BinaryWire.readEventName(Ljava/lang/StringBuilder;)Lnet/openhft/chronicle/wire/ValueIn; (45 bytes) @ 0x00007fe9615dd73b [0x00007fe9615dcfa0+0x79b]
#
# Failed to write core dump. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again
#
# An error report file with more information is saved as:
# /nvm/home/peter/Build-All/Chronicle-Queue/hs_err_pid14792.log
#
# If you would like to submit a bug report, please visit:
#   http://bugreport.java.com/bugreport/crash.jsp
#