Add separate Iron Coast mission, weapon and enemy mods with SD HD artwork and audio

examples/mods/iron_coast_mission_1/scripts/depot.rhai

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+fn on_death(event,state,random) {
+    let opened=0;
+    if event.objectives.contains("iron_coast_mission_1:depots_opened") {
+        opened=event.objectives["iron_coast_mission_1:depots_opened"];
+    }
+    #{commands:[
+        #{op:"objective",key:"iron_coast_mission_1:depots_opened",value:opened+1},
+        #{op:"play_sound",sound:"iron_coast_mission_1:depot_open"}
+    ],state:state}
+}

examples/mods/iron_coast_mission_1/scripts/mission.rhai

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+fn on_mission_start(event, state, random) {
+    #{commands:[
+        #{op:"give_item", item:"pulse_cannon:equipment", count:1},
+        #{op:"give_item", item:"iron_coast_mission_1:repair", count:3},
+        #{op:"objective", key:"iron_coast_mission_1:phase", value:1},
+        #{op:"objective", key:"iron_coast_mission_1:turrets_required", value:2},
+        #{op:"objective", key:"iron_coast_mission_1:complete", value:0},
+        #{op:"play_sound", sound:"iron_coast_mission_1:approach"}
+    ],state:#{dock_alarm:false,boss_alarm:false,complete:false}}
+}
+
+fn on_tick(event, state, random) {
+    let commands=[];
+    if event.tick>=280 && !state.dock_alarm {
+        state.dock_alarm=true;
+        commands.push(#{op:"objective",key:"iron_coast_mission_1:phase",value:2});
+        commands.push(#{op:"play_sound",sound:"iron_coast_mission_1:dock_alarm"});
+    }
+    if event.tick>=720 && !state.boss_alarm {
+        state.boss_alarm=true;
+        commands.push(#{op:"objective",key:"iron_coast_mission_1:phase",value:3});
+        commands.push(#{op:"play_sound",sound:"iron_coast_mission_1:boss_alarm"});
+    }
+    let turrets=0;
+    if event.objectives.contains("iron_coast_turret:defeated") {
+        turrets=event.objectives["iron_coast_turret:defeated"];
+    }
+    let boss=0;
+    if event.objectives.contains("iron_coast_boss:defeated") {
+        boss=event.objectives["iron_coast_boss:defeated"];
+    }
+    // Surviving turrets must be disabled even if the command ship died first.
+    if turrets>=2 && boss>=1 && !state.complete {
+        state.complete=true;
+        commands.push(#{op:"objective",key:"iron_coast_mission_1:phase",value:4});
+        commands.push(#{op:"objective",key:"iron_coast_mission_1:complete",value:1});
+        commands.push(#{op:"credits",amount:5000});
+        commands.push(#{op:"play_sound",sound:"iron_coast_mission_1:victory"});
+        commands.push(#{op:"complete"});
+    }
+    #{commands:commands,state:state}
+}
+
+fn on_mission_end(event,state,random) {
+    let value=0;
+    if event.success {value=1;}
+    #{commands:[#{op:"objective",key:"iron_coast_mission_1:debrief",value:value}],state:state}
+}

examples/mods/iron_coast_mission_1/scripts/repair.rhai

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+fn on_use(event,state,random) {
+    #{commands:[
+        #{op:"shield",amount:25},
+        #{op:"play_sound",sound:"iron_coast_mission_1:repair_use"}
+    ],state:state}
+}