Update to io.grcp 1.21.0 and protobuf 3.7.1

io.grpc plug-in in features folder..

gitlab #308

Change-Id: Ica351c57fecb2447a4fdc0f8c2764624db32a382
(cherry picked from commit 9ee8283c47811ed53243352ac132a9bdb0665134)

diff --git a/features/io.grpc/.classpath b/plugins/io.grpc/.classpath
similarity index 100%
rename from features/io.grpc/.classpath
rename to plugins/io.grpc/.classpath

diff --git a/features/io.grpc/.project b/plugins/io.grpc/.project
similarity index 100%
rename from features/io.grpc/.project
rename to plugins/io.grpc/.project

diff --git a/features/io.grpc/.settings/org.eclipse.jdt.core.prefs b/plugins/io.grpc/.settings/org.eclipse.jdt.core.prefs
similarity index 100%
rename from features/io.grpc/.settings/org.eclipse.jdt.core.prefs
rename to plugins/io.grpc/.settings/org.eclipse.jdt.core.prefs

diff --git a/features/io.grpc/META-INF/MANIFEST.MF b/plugins/io.grpc/META-INF/MANIFEST.MF
similarity index 100%
rename from features/io.grpc/META-INF/MANIFEST.MF
rename to plugins/io.grpc/META-INF/MANIFEST.MF

diff --git a/features/io.grpc/build.properties b/plugins/io.grpc/build.properties
similarity index 100%
rename from features/io.grpc/build.properties
rename to plugins/io.grpc/build.properties

diff --git a/features/io.grpc/lib/grpc-api-1.21.0.jar b/plugins/io.grpc/lib/grpc-api-1.21.0.jar
similarity index 100%
rename from features/io.grpc/lib/grpc-api-1.21.0.jar
rename to plugins/io.grpc/lib/grpc-api-1.21.0.jar

diff --git a/features/io.grpc/lib/grpc-context-1.21.0.jar b/plugins/io.grpc/lib/grpc-context-1.21.0.jar
similarity index 100%
rename from features/io.grpc/lib/grpc-context-1.21.0.jar
rename to plugins/io.grpc/lib/grpc-context-1.21.0.jar

diff --git a/features/io.grpc/lib/grpc-core-1.21.0.jar b/plugins/io.grpc/lib/grpc-core-1.21.0.jar
similarity index 100%
rename from features/io.grpc/lib/grpc-core-1.21.0.jar
rename to plugins/io.grpc/lib/grpc-core-1.21.0.jar

diff --git a/features/io.grpc/lib/grpc-netty-shaded-1.21.0.jar b/plugins/io.grpc/lib/grpc-netty-shaded-1.21.0.jar
similarity index 100%
rename from features/io.grpc/lib/grpc-netty-shaded-1.21.0.jar
rename to plugins/io.grpc/lib/grpc-netty-shaded-1.21.0.jar

diff --git a/features/io.grpc/lib/grpc-protobuf-1.21.0.jar b/plugins/io.grpc/lib/grpc-protobuf-1.21.0.jar
similarity index 100%
rename from features/io.grpc/lib/grpc-protobuf-1.21.0.jar
rename to plugins/io.grpc/lib/grpc-protobuf-1.21.0.jar

diff --git a/features/io.grpc/lib/grpc-protobuf-lite-1.21.0.jar b/plugins/io.grpc/lib/grpc-protobuf-lite-1.21.0.jar
similarity index 100%
rename from features/io.grpc/lib/grpc-protobuf-lite-1.21.0.jar
rename to plugins/io.grpc/lib/grpc-protobuf-lite-1.21.0.jar

diff --git a/features/io.grpc/lib/grpc-stub-1.21.0.jar b/plugins/io.grpc/lib/grpc-stub-1.21.0.jar
similarity index 100%
rename from features/io.grpc/lib/grpc-stub-1.21.0.jar
rename to plugins/io.grpc/lib/grpc-stub-1.21.0.jar