rename SQLiteNG to SQLite and SQLite to SQLiteLegacy

this seems the least evil way forward since mono 2.6 and later will see increasing usage, and this only works with what was SQLiteNG
MAC USERS WILL NEED TO CHANGE REFERENCES TO "OpenSim.Data.SQLite.dll" to "OpenSim.Data.SQLiteLegacy.dll" in OpenSim.ini and config-include/StandaloneCommon.ini (if using standalone)
See the OpenSim.ini.example and StandaloneCommon.ini.example files for more details
This commit also temporarily changes unsigned ParentEstateID values in the OpenSim.Data.Tests to signed temporarily, since the new plugin enforces creation of signed fields in the database (which is what the SQL actually specifies).  And change data columns in sqlite is a pita.

OpenSim/Data/SQLiteLegacy/Resources/001_UserStore.sql

@@ -0,0 +1,39 @@
+BEGIN TRANSACTION;
+
+-- users table
+CREATE TABLE users(
+       UUID varchar(255) primary key,
+       username varchar(255),
+       surname varchar(255),
+       passwordHash varchar(255),
+       passwordSalt varchar(255),
+       homeRegionX integer,
+       homeRegionY integer,
+       homeLocationX float,
+       homeLocationY float,
+       homeLocationZ float,
+       homeLookAtX float,
+       homeLookAtY float,
+       homeLookAtZ float,
+       created integer,
+       lastLogin integer,
+       rootInventoryFolderID varchar(255),
+       userInventoryURI varchar(255),
+       userAssetURI varchar(255),
+       profileCanDoMask integer,
+       profileWantDoMask integer,
+       profileAboutText varchar(255),
+       profileFirstText varchar(255),
+       profileImage varchar(255),
+       profileFirstImage varchar(255), 
+       webLoginKey text default '00000000-0000-0000-0000-000000000000');
+-- friends table
+CREATE TABLE userfriends(
+       ownerID varchar(255),
+       friendID varchar(255),
+       friendPerms integer,
+       ownerPerms integer,
+       datetimestamp integer);
+
+COMMIT;
+