Refactored tools services endpoints system and fixed json formatter. (#91)

Co-authored-by: Artur Kołecki <koleckiartur@icloud.com>
Co-authored-by: Adam Bem <adam.bem@zoho.eu>
Reviewed-on: R11/release11-tools-web#91

Backend/tools-services/Dockerfile

@@ -0,0 +1,21 @@
+# Using maven image, based on java 8
+FROM maven:3.6.3-jdk-8 as target
+WORKDIR build
+COPY ./ ./
+RUN mvn -ntp package
+
+
+# Go to working directory in docker image
+# WORKDIR /usr/app/
+
+FROM openjdk:slim-buster
+COPY --from=target /build/target/*jar-with-dependencies.jar /app/REST_XSLT.jar
+
+# Download dependencies during image build
+# (RUN - works on image creation)
+# (CMD - works on container start)
+# RUN mvn dependency:resolve
+# RUN mvn dependency:go-offline
+
+# On container creation - run maven tests
+CMD exec java -jar /app/REST_XSLT.jar