Reduce buildtime of hives (#7062)

Author: lL1l1

changelog/snippets/balance.7062.md

@@ -0,0 +1,7 @@
+- (#7062) Reduce the build time of hives, especially for the lower levels, to make them worth building over T3 engineers when you need buildpower very quickly.
+
+  **The Hive: T2 Engineering Station (XRB0104, XRB0204, XRB0304):**
+  - Build time:
+    - Level 1: 1171 -> 880
+    - Level 2: 1171 -> 1000
+    - Level 3: 1171 -> 1120

units/XRB0104/XRB0104_unit.bp

@@ -92,7 +92,7 @@ UnitBlueprint{
         BuildCostEnergy = 2100,
         BuildCostMass = 350,
         BuildRate = 20,
-        BuildTime = 1171,
+        BuildTime = 880,
         BuildableCategory = { "xrb0204" },
         UpgradeOnlyCategory = { "xrb0204" },
         MaxBuildDistance = 15,

units/XRB0204/XRB0204_unit.bp

@@ -89,7 +89,7 @@ UnitBlueprint{
         BuildCostEnergy = 4200,
         BuildCostMass = 700,
         BuildRate = 37,
-        BuildTime = 1171,
+        BuildTime = 1000,
         BuildableCategory = { "xrb0304" },
         UpgradeOnlyCategory = { "xrb0304" },
         DifferentialUpgradeCostCalculation = true,

units/XRB0304/XRB0304_unit.bp

@@ -85,7 +85,7 @@ UnitBlueprint{
         BuildCostEnergy = 6300,
         BuildCostMass = 1050,
         BuildRate = 50,
-        BuildTime = 1171,
+        BuildTime = 1120,
         DifferentialUpgradeCostCalculation = true,
         MaxBuildDistance = 25,
         RebuildBonusIds = { "xrb0104" },