Add syntax for Java extends & implements keywords

The names that followed the 'extends' and 'implements' keywords were not
properly colored. Two new syntax have been added to deal with that case.

Note: Only one could have done the job.

after/syntax/java.vim

@@ -30,6 +30,8 @@ syntax match   javaOdysseyConstructor "\%(\<\u\w*\>\)\%(<\%(\u\w*\|,\|\s\|<\|>\)
 syntax match   javaOdysseyMethod      "\<\l\w*\>("me=e-1 containedin=javaParenT,javaParenT1,javaParenT2
 syntax match   javaOdysseyCasting     "(\<\u\w*\>\%(<\%(\u\w*\|,\|\s\|<\|>\)\+>\)\=\%(\[\]\)\=)"hs=s+1,he=e-1 containedin=javaParenT,javaParenT1,javaParenT2 contains=javaOdysseyGeneric,javaOdysseyArray,javaOdysseySeparator
 syntax match   javaOdysseyImport      "\%(\<import\>\s\+\%(\l\+.\)\+\)\@<=\%(\u\w*\)\s*;"
+syntax match   javaOdysseyExtends     "\%(\<extends\>\s\+\)\@<=\%(\<\u\w*\>\)\%(<\%(\u\w*\|,\|\s\|<\|>\)*>\)\=" contains=javaOdysseyGeneric,javaOdysseySeparator
+syntax match   javaOdysseyImplements  "\%(\<implements\>\s\+\)\@<=\%(\<\u\w*\>\)\%(<\%(\u\w*\|,\|\s\|<\|>\)*>\)\=" contains=javaOdysseyGeneric,javaOdysseySeparator
 
 " }}}
 " vim: foldmethod=marker