Add verbose (client predicted!) examine text to Gas Miners (#30480)

* add verbose examine text to gas miners so their behaviour can be understood

* no need for these to be properties

* use an enum instead of two booleans for the miner state

* require the gas miner to be anchored in order to not be disabled

* xmldoc

* pr feedback

* file-scope namespace

* it's to late to hide my transgressions in a rebase

* turns out the normal examine distance is totally fine for this

Content.Client/Atmos/EntitySystems/GasMinerSystem.cs

@@ -0,0 +1,10 @@
+using Content.Shared.Atmos.EntitySystems;
+using JetBrains.Annotations;
+
+namespace Content.Client.Atmos.EntitySystems;
+
+[UsedImplicitly]
+public sealed class GasMinerSystem : SharedGasMinerSystem
+{
+
+}