Add cryopod logs (#16854)

Content.Server/Atmos/GasMixture.cs

@@ -207,6 +207,20 @@ namespace Content.Server.Atmos
             Array.Resize(ref Moles, Atmospherics.AdjustedNumberOfGases);
         }
 
+        public GasMixtureStringRepresentation ToPrettyString()
+        {
+            var molesPerGas = new Dictionary<string, float>();
+            for (int i = 0; i < Moles.Length; i++)
+            {
+                if (Moles[i] == 0)
+                    continue;
+
+                molesPerGas.Add(((Gas) i).ToString(), Moles[i]);
+            }
+
+            return new GasMixtureStringRepresentation(TotalMoles, Temperature, Pressure, molesPerGas);
+        }
+
         public override bool Equals(object? obj)
         {
             if (obj is GasMixture mix)

Content.Server/Atmos/GasMixtureStringRepresentation.cs

@@ -0,0 +1,18 @@
+using System.Linq;
+
+namespace Content.Server.Atmos;
+
+public readonly record struct GasMixtureStringRepresentation(float TotalMoles, float Temperature, float Pressure, Dictionary<string, float> MolesPerGas) : IFormattable
+{
+    public override string ToString()
+    {
+        return $"{Temperature}K {Pressure} kPa";
+    }
+
+    public string ToString(string? format, IFormatProvider? formatProvider)
+    {
+        return ToString();
+    }
+
+    public static implicit operator string(GasMixtureStringRepresentation rep) => rep.ToString();
+}