Various damage-related changes

- Rename unblockable damage to "weird" and special damage to "unblockable"
- Monsters now support immunity to any damage type
- Fix using wrong damage type for bonus damage in PC-on-PC attacks
- Forbid use of unblockable (formerly special) damage by the scenario designer, except in special nodes; if hacked in, it's replaced with weird (formerly unblockable) damage.
- Fix damage amount text in animations (both single-frame booms and fully animated booms)

Changed the following things from weird (formerly unblockable) damage to unblockable (formerly special) damage:
- Starvation
- Debug 'K' command
- Damage from items forcibly ending flight
- Damage from bashing doors

rsrc/schemas/monsters.xsd

@@ -116,7 +116,7 @@
 							<xs:enumeration value="fire"/>
 							<xs:enumeration value="poison"/>
 							<xs:enumeration value="magic"/>
-							<xs:enumeration value="unblockable"/>
+							<xs:enumeration value="weird"/>
 							<xs:enumeration value="cold"/>
 							<xs:enumeration value="undead"/>
 							<xs:enumeration value="demon"/>
@@ -357,6 +357,10 @@
 							<xs:element name="cold" type="xs:integer" minOccurs="0"/>
 							<xs:element name="poison" type="xs:integer" minOccurs="0"/>
 							<xs:element name="magic" type="xs:integer" minOccurs="0"/>
+							<xs:element name="weap" type="xs:integer" minOccurs="0"/>
+							<xs:element name="weird" type="xs:integer" minOccurs="0"/>
+							<xs:element name="undead" type="xs:integer" minOccurs="0"/>
+							<xs:element name="demon" type="xs:integer" minOccurs="0"/>
 							<xs:element name="all" type="bool" minOccurs="0"/>
 							<xs:element name="fear" type="bool" minOccurs="0"/>
 						</xs:all>