Implemented base HEC logger class

#5

Author: Caldas

src/SplunkLogger/Loggers/HECBaseLogger.cs

@@ -0,0 +1,35 @@
+using System;
+using System.Net.Http;
+using Microsoft.Extensions.Logging;
+               
+namespace Splunk.Loggers
+{
+    public abstract class HECBaseLogger
+    {
+        protected readonly ILoggerFormatter loggerFormatter;
+        protected readonly BatchManager batchManager;
+
+        readonly string categoryName;
+        readonly LogLevel threshold;
+        readonly HttpClient httpClient;
+
+        public HECBaseLogger(string categoryName, LogLevel threshold, HttpClient httpClient, BatchManager batchManager, ILoggerFormatter loggerFormatter)
+        {
+            this.categoryName = categoryName;
+            this.threshold = threshold;
+            this.httpClient = httpClient;
+            this.batchManager = batchManager;
+            this.loggerFormatter = loggerFormatter;
+        }
+
+        public bool IsEnabled(LogLevel logLevel)
+        {
+            return (int)logLevel >= (int)threshold;
+        }
+
+        public IDisposable BeginScope<T>(T state)
+        {
+            return null;
+        }
+    }
+}