espeak: Fix policy warnings

* missing lib:libespeak PROVIDE
* missing devel: PROVIDE
* fix include install location
* fix lib install to develop/

app-accessibility/espeak/espeak-1.48.04.recipe

@@ -21,6 +21,8 @@ ARCHITECTURES="x86_gcc2 ?x86 ?x86_64"
 PROVIDES="
 	espeak = $portVersion
 	cmd:espeak = $portVersion
+	lib:libespeak = 1.1.4
+	devel:libespeak = 1.1.4
 	"
 REQUIRES="
 	haiku >= $haikuVersion
@@ -44,7 +46,8 @@ BUILD()
 		AUDIO=wave LIB_PTHREAD= \
 		VISIBILITY_FLAG= \
 		PREFIX=$prefix \
-		DATADIR=$dataDir/espeak-data
+		DATADIR=$dataDir/espeak-data \
+		INCDIR=$includeDir/espeak
 }
 
 INSTALL()
@@ -55,5 +58,7 @@ INSTALL()
 		VISIBILITY_FLAG= \
 		PREFIX=$prefix \
 		DATADIR=$dataDir/espeak-data \
+		INCDIR=$includeDir/espeak \
 		install
+	prepareInstalledDevelLibs libespeak
 }