Move FreeBSDSignals to Utility

It will shortly be need by FreeBSD elf core support on all hosts.


git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@206466 91177308-0d34-0410-b5e6-96231b3b80d8
elf-core: Strip trailing whitespace


git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@206468 91177308-0d34-0410-b5e6-96231b3b80d8
elf-core: Add FreeBSD signals

Sponsored by: DARPA, AFRL
Differential Revision: http://reviews.llvm.org/D3401


git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@206469 91177308-0d34-0410-b5e6-96231b3b80d8