Updated fields to properties, added comments (#794)

Co-authored-by: trishorts <mshort@chem.wisc.edu>

mzLib/FlashLFQ/SpectraFileInfo.cs

@@ -2,12 +2,22 @@
 {
     public class SpectraFileInfo
     {
-        public readonly string FullFilePathWithExtension;
-        public readonly string FilenameWithoutExtension;
-        public string Condition;
-        public readonly int BiologicalReplicate;
-        public readonly int Fraction;
-        public readonly int TechnicalReplicate;
+        /// <summary>
+        /// The path to the data file (e.g., a .raw file) with the extension
+        /// </summary>
+        public string FullFilePathWithExtension { get; init; }
+        /// <summary>
+        /// The name of the data file without the extension
+        /// </summary>
+        public string FilenameWithoutExtension { get; init; }
+        /// <summary>
+        /// The condition of the sample (e.g., "Control" or "Treatment")
+        /// </summary>
+        public string Condition { get; set; }
+
+        public int BiologicalReplicate { get; set; }
+        public int TechnicalReplicate { get; set; }
+        public int Fraction { get; set; }
 
         public SpectraFileInfo(string fullFilePathWithExtension, string condition, int biorep, int techrep, int fraction)
         {