Add atlas experiment type (#260)

* Add atlas experiment type

* Replace semicolon

* Remove atlas from lookups file

* Remove enum additions

Author: gfrn

schemas/ispyb/updates/2025_02_27_ExperimentType_atlas.sql.sql

@@ -0,0 +1,9 @@
+INSERT IGNORE INTO SchemaStatus (scriptName, schemaStatus) VALUES ('2025_02_27_ExperimentType_atlas.sql', 'ONGOING');
+
+INSERT INTO ExperimentType (
+  experimentTypeId, name, proposalType, active
+) VALUES (
+  44, 'Atlas', 'em', 1
+);
+
+UPDATE SchemaStatus SET schemaStatus = 'DONE' WHERE scriptName = '2025_02_27_ExperimentType_atlas.sql';