Integrate view-map into ordoor

Now we can view scenario maps from the main game interface. We can't
cancel out of a scenario yet, though.

internal/ship/ship.go

@@ -0,0 +1,70 @@
+package ship
+
+// Ship encapsulates campaign state, including current location in the campaign,
+// marines and their stats, supplies, etc.
+type Ship struct {
+	NextScenario string
+
+	Squads      []*Squad
+	Captain     *Character
+	Chaplain    *Character
+	Apothecary  *Character
+	Techmarines [2]*Character
+	Librarians  [4]*Character
+}
+
+type SquadType int
+type CharacterType int
+
+const (
+	SquadTypeTactical   SquadType = 0
+	SquadTypeTerminator SquadType = 1
+	SquadTypeAssault    SquadType = 2
+	SquadTypeDevastator SquadType = 3
+
+	CharTypeMarine     CharacterType = 0
+	CharTypeCaptain    CharacterType = 1
+	CharTypeChaplain   CharacterType = 2
+	CharTypeApothecary CharacterType = 3
+	CharTypeTechmarine CharacterType = 4
+	CharTypeLibrarian  CharacterType = 5
+)
+
+type Squad struct {
+	Type SquadType
+
+	Characters []*Character
+}
+
+type Character struct {
+	Name string
+	Type CharacterType
+
+	Stats
+	Honours
+}
+
+type Stats struct {
+	ActionPoints   int
+	Health         int
+	Armour         int
+	BallisticSkill int
+	WeaponSkill    int
+	Strength       int
+	Toughness      int
+	Initiative     int
+	Attacks        int
+	Leadership     int
+
+	MissionCount int
+	KillCount    int
+
+	Experience int
+}
+
+type Honours struct {
+	Marksman       bool
+	CruxTerminatus bool
+	PuritySeal     bool
+	ImperialLaurel bool
+}