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

bin/app/data/color_schemes/bad_rainbow.xml

@@ -374,6 +374,9 @@
 			<macro>
 				<like>file</like>
 			</macro>
+			<annotation>
+				<like>file</like>
+			</annotation>
 
 			<access>
 				<fill>
@@ -508,9 +511,15 @@
 			<include>
 				<normal>#4E82F6</normal>
 			</include>
+			<import>
+				<normal>#4E82F6</normal>
+			</import>
 			<macro_use>
 				<normal>#4E82F6</normal>
 			</macro_use>
+			<annotation_use>
+				<normal>#4E82F6</normal>
+			</annotation_use>
 
 			<aggregation>
 				<normal>#666666</normal>

bin/app/data/color_schemes/bright.xml

@@ -357,6 +357,9 @@
 			<macro>
 				<like>file</like>
 			</macro>
+			<annotation>
+				<like>file</like>
+			</annotation>
 
 			<access>
 				<fill>
@@ -479,6 +482,19 @@
 				<like>template_argument</like>
 			</template_member_specialization>
 
+			<include>
+				<normal>#719660</normal>
+			</include>
+			<import>
+				<normal>#719660</normal>
+			</import>
+			<macro_use>
+				<normal>#719660</normal>
+			</macro_use>
+			<annotation_use>
+				<normal>#719660</normal>
+			</annotation_use>
+
 			<aggregation>
 				<normal>#DDD</normal>
 				<focus>#CCC</focus>

bin/app/data/color_schemes/dark.xml

@@ -360,6 +360,9 @@
 			<macro>
 				<like>file</like>
 			</macro>
+			<annotation>
+				<like>file</like>
+			</annotation>
 
 			<access>
 				<fill>
@@ -485,9 +488,15 @@
 			<include>
 				<normal>#247368</normal>
 			</include>
+			<import>
+				<normal>#247368</normal>
+			</import>
 			<macro_use>
 				<normal>#247368</normal>
 			</macro_use>
+			<annotation_use>
+				<normal>#247368</normal>
+			</annotation_use>
 
 			<aggregation>
 				<normal>#4D4D4D</normal>