New and updated sample function Dockerfiles & deleted NodeBaseFunction

sample-functions/AlpineFunction/Dockerfile.armhf

sample-functions/CaptainsIntent/Dockerfile

sample-functions/ChangeColorIntent/Dockerfile

sample-functions/HostnameIntent/Dockerfile

sample-functions/MarkdownRender/Dockerfile.armhf

sample-functions/NodeBaseFunction/Dockerfile

sample-functions/NodeBaseFunction/build.sh

sample-functions/NodeBaseFunction/faas_index.js

sample-functions/NodeBaseFunction/package.json

sample-functions/NodeInfo/Dockerfile

sample-functions/NodeInfo/Dockerfile.armhf

sample-functions/ResizeImageMagick/Dockerfile.armhf

sample-functions/ResizeImageMagick/build.armhf.sh

sample-functions/SentimentAnalysis/Dockerfile

sample-functions/SentimentAnalysis/Dockerfile.armhf

sample-functions/SentimentAnalysis/build.armhf.sh