TPAC: Add config options to hide phone / user prefs

TPAC: Add config options to hide phone / user prefs

Libraries using centralized authentication (such as LDAP via
open-ils.auth_proxy) will not want to allow users to change their
passwords or email addresses.

In addition, many libraries do not want to deal with phone
notifications.

This commit adds preferences to config.tt2 that hide these options from
the user.

Signed-off-by: Dan Scott <dscott@laurentian.ca>
Conflicts:
	Open-ILS/src/templates/opac/myopac/prefs.tt2
	Open-ILS/src/templates/opac/myopac/prefs_notify.tt2
	Open-ILS/src/templates/opac/parts/place_hold.tt2