Add photon.pb.h/PhotonVersion to cpp headers zip & create combined sources zip (#1335)

Combined sources zip is useful for robotpy to build both targeting & lib in the same build

shared/javacpp/publish.gradle

@@ -6,6 +6,10 @@ def baseArtifactId = nativeName
 def artifactGroupId = 'org.photonvision'
 def zipBaseName = "_GROUP_org_photonvision_${baseArtifactId}_ID_${baseArtifactId}-cpp_CLS"
 
+// Quick hack to make this name visible to photon-lib for combined
+ext.zipBaseName = zipBaseName
+ext.artifactGroupId = artifactGroupId
+
 def licenseFile = file("$rootDir/LICENCE")
 
 task cppSourcesZip(type: Zip) {
@@ -17,15 +21,17 @@ task cppSourcesZip(type: Zip) {
         into '/'
     }
 
-    from('src/main/native/cpp') {
+    println("Sources: from $projectDir ")
+    from("$projectDir/src/main/native/cpp") {
         into '/'
     }
 
     // assume we will always have proto sources
     from("$buildDir/generated/source/proto/main/cpp") {
         into '/'
+        // Only include generated C++ source files, not headers
+        include "**/*.cc", "**/*.cpp"
     }
-
     dependsOn generateProto
 }
 
@@ -47,6 +53,14 @@ task cppHeadersZip(type: Zip) {
             into '/'
         }
     }
+
+    // assume we will always have proto sources
+    from("$buildDir/generated/source/proto/main/cpp") {
+        into '/'
+        // Only include generated C++ headers
+        include "**/*.h"
+    }
+    dependsOn generateProto
 }
 
 artifacts {