logic: index and store Java annotations

* add annotation symbol kind
* add annotation_usage edge kind
* increment storage version
* record java annotation decls
* record java annotation member decls (as fields)
* update expected output of java sample project indexing tests
* add tests for recording annotations
* add annotation icon, annotation colors
* add new annotation node and edge types to legend

java_indexer/src/main/java/com/sourcetrail/SymbolKind.java

@@ -2,26 +2,27 @@ package com.sourcetrail;
 
 public enum SymbolKind
 { // these values need to be the same as SymbolKind in C++ code
-	BUILTIN_TYPE(1),
-	CLASS(2),
-	ENUM(3),
-	ENUM_CONSTANT(4),
-	FIELD(5),
-	FUNCTION(6),
-	GLOBAL_VARIABLE(7),
-	INTERFACE(8),
-	LOCAL_VARIABLE(9),
-	MACRO(10),
-	METHOD(11),
-	NAMESPACE(12),
-	PACKAGE(13),
-	PARAMETER(14),
-	STRUCT(15),
-	TEMPLATE_PARAMETER(16),
-	TYPEDEF(17),
-	TYPE_PARAMETER(18),
-	UNION(19),
-	TYPE_MAX(20);
+	ANNOTATION(1),
+	BUILTIN_TYPE(2),
+	CLASS(3),
+	ENUM(4),
+	ENUM_CONSTANT(5),
+	FIELD(6),
+	FUNCTION(7),
+	GLOBAL_VARIABLE(8),
+	INTERFACE(9),
+	LOCAL_VARIABLE(10),
+	MACRO(11),
+	METHOD(12),
+	NAMESPACE(13),
+	PACKAGE(14),
+	PARAMETER(15),
+	STRUCT(16),
+	TEMPLATE_PARAMETER(17),
+	TYPEDEF(18),
+	TYPE_PARAMETER(19),
+	UNION(20),
+	TYPE_MAX(21);
 	
 	private final int m_value;