Build wpilib with cmake instead of gradle (#15)

* Move java lib install to /usr/local/frc/java
* Build and install both debug and normal OpenCV libraries
* Install OpenCV cmake files
* Build OpenCV Java with version 8 target
* Build static OpenCV for static allwpilib binaries
* Move netconsoleTee install to /usr/local/frc/bin
* Move multiCameraServer default app install to /usr/local/frc/bin
* Install more FRC binaries
* Fix /home/pi/zips/java-multiCameraServer.zip owner to pi:pi
* Remove azure 60 minute timeout
* Add openjdk-8-jdk to Azure docker image (this is needed for cmake to find javah as only cmake 3.9 is available)

stage2/01-sys-tweaks/files/camera_log_run

@@ -1,2 +1,2 @@
 #!/bin/sh
-exec /usr/local/bin/netconsoleTee -u
+exec /usr/local/frc/bin/netconsoleTee -u

stage2/01-sys-tweaks/files/runCamera

@@ -2,4 +2,4 @@
 ### TYPE: builtin
 echo "Waiting 5 seconds..."
 sleep 5
-exec ./multiCameraServer
+exec /usr/local/frc/bin/multiCameraServer