Update Maven release scripts

Summary:
Reuse the gradle setup we've built for Litho which allows for parallel publishing to Bintray and Maven Central in addition to Sonatype Snapshots.

This appears not to break the existing jcenter deploy script which is pretty great.

Reviewed By: emilsjolander

Differential Revision: D5020576

fbshipit-source-id: 3ef163ccbfe91c6858b051d39dcf237ca388e18d

gradle/release-bintray.gradle

@@ -0,0 +1,33 @@
+// Set up everything required for releasing on Bintray
+ext {
+    bintrayRepo = 'maven'
+    bintrayUserOrg = 'facebook'
+    bintrayName = "${GROUP}:${POM_ARTIFACT_ID}"
+    bintrayDescription = POM_DESCRIPTION
+    projectUrl = POM_URL
+    issuesUrl = 'https://github.com/facebook/yoga/issues'
+    scmUrl = POM_SCM_URL
+    scmConnection = POM_SCM_CONNECTION
+    scmDeveloperConnection = POM_SCM_DEV_CONNECTION
+
+    publishedGroupId = GROUP
+    libraryName = 'yoga'
+    artifact = 'yoga'
+
+    developerId = POM_DEVELOPER_ID
+    developerName = POM_DEVELOPER_NAME
+
+    projectLicenses = {
+        license {
+            name = POM_LICENSE_NAME
+            url = POM_LICENSE_URL
+            distribution = POM_LICENSE_DIST
+        }
+    }
+}
+
+// Set up the Android Maven publication (POM etc.)
+apply from: rootProject.file('gradle/android-maven-install.gradle')
+
+// Upload to Bintray
+apply from: rootProject.file('gradle/bintray.gradle')