BaseTools:Update mailing list address in BaseTools error messages

BaseTools:Update mailing list address in BaseTools error messages

BZ:https://bugzilla.tianocore.org/show_bug.cgi?id=1815

The edk2 source tree contains four instances of the outdated mailing
list address "edk2-devel@lists.01.org".
I created a new variable, MSG_EDKII_MAIL_ADDR, to receive the
new email address and replaced the old one with this variable

Cc: Bob Feng <bob.c.feng@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Signed-off-by: Zhiju.Fan <zhijux.fan@intel.com>
Reviewed-by: Bob Feng <bob.c.feng@intel.com>