Adding public create methods to TagMap.Entry

Methods are intended to be used to create TagMap.Entry objects for repeatedly used values

Overloads are provided for all the supported types to be easier for developers not familiar with TagMap internals.  Internally, TagMap still uses the more explicit new<X>Entry methods.

Author: dougqh

internal-api/src/main/java/datadog/trace/api/TagMap.java

@@ -368,6 +368,30 @@ final class Entry extends EntryChange implements Map.Entry<String, Object>, Entr
      * These objects might be primitive box objects.
      */
     static final byte ANY = 0;
+    
+    public static final Entry create(String tag, Object value) {
+      return TagMap.Entry.newAnyEntry(tag, value);
+    }
+    
+    public static final Entry create(String tag, CharSequence value) {
+      return TagMap.Entry.newObjectEntry(tag, value);
+    }
+    
+    public static final Entry create(String tag, int value) {
+      return TagMap.Entry.newIntEntry(tag, value);
+    }
+    
+    public static final Entry create(String tag, long value) {
+      return TagMap.Entry.newLongEntry(tag, value);
+    }
+    
+    public static final Entry create(String tag, float value) {
+      return TagMap.Entry.newFloatEntry(tag, value);
+    }
+    
+    public static final Entry create(String tag, double value) {
+      return TagMap.Entry.newDoubleEntry(tag, value);
+    }
 
     static Entry newAnyEntry(Map.Entry<? extends String, ? extends Object> entry) {
       return newAnyEntry(entry.getKey(), entry.getValue());