add docker image creation for avTranscoder

Dockerfile

@@ -0,0 +1,24 @@
+FROM gliderlabs/alpine:3.3
+
+ADD . /src
+
+RUN apk add --update cmake make g++ ffmpeg swig ffmpeg-dev doxygen python-dev freeglut freeglut-dev
+RUN mkdir /src/build
+
+WORKDIR /src/build
+
+RUN cmake ..
+RUN make
+RUN make install
+
+
+# -- Build avTranscoder with dependency to ffmpeg.
+# -- Found SWIG: /usr/bin/swig (found version "3.0.7") 
+# -- Could NOT find PythonLibs (missing:  PYTHON_LIBRARIES PYTHON_INCLUDE_DIRS) 
+# PYTHON not found, will not build python binding.
+# -- Could NOT find Java (missing:  Java_JAVA_EXECUTABLE Java_JAR_EXECUTABLE Java_JAVAC_EXECUTABLE Java_JAVAH_EXECUTABLE Java_JAVADOC_EXECUTABLE) 
+# -- Could NOT find JNI (missing:  JAVA_AWT_LIBRARY JAVA_JVM_LIBRARY JAVA_INCLUDE_PATH JAVA_INCLUDE_PATH2 JAVA_AWT_INCLUDE_PATH) 
+# JAVA not found, will not build java binding.
+# -- Could NOT find Doxygen (missing:  DOXYGEN_EXECUTABLE) 
+# -- Could NOT find OpenGL (missing:  OPENGL_gl_LIBRARY OPENGL_INCLUDE_DIR) 
+# OpenGL not found, will not build avplayer app.