feat: add interval values parsing (#12)

Author: ahanoff

src/AEMO.MDFF.Tests/NEM12/BasicTest.cs

@@ -27,6 +27,9 @@ public async Task Test1()
                 case NMIDataDetailsRecord { NextScheduledReadDate: var nsrd }:
                     _testOutputHelper.WriteLine(nsrd.ToLongDateString());
                     break;
+                case IntervalDataRecord { IntervalValues: var ivs }:
+                    _testOutputHelper.WriteLine(ivs.ToString());
+                    break;
             }
         }
     }

src/AEMO.MDFF/NEM12/Nem12Reader.cs

@@ -110,11 +110,16 @@ private IntervalDataRecord ParseIntervalDataRecord(CsvDataReader csv, string cur
         int intervalLength = _nmiIntervalLengths[currentNMI];
         int expectedIntervals = 1440 / intervalLength; // 1440 minutes in a day
 
+        var intervalValues = new List<decimal>();
+        for (int i = 2; i < expectedIntervals + 2; i++)
+        {
+            intervalValues.Add(csv.GetDecimal(i));
+        }
+
         return new IntervalDataRecord
         {
-            IntervalDate = date
-            // TODO: parse interval values
+            IntervalDate = date,
+            IntervalValues = intervalValues
         };
     }
-    
 }