fix gitpod configurations

Signed-off-by: Avinal Kumar <avinal.xlvii@gmail.com>

.gitpod.dockerfile

@@ -0,0 +1,26 @@
+FROM gitpod/workspace-full:latest
+
+USER root
+ARG DEBIAN_FRONTEND=noninteractive
+RUN apt-get update \
+ && apt-get install -y --no-install-recommends \
+      git \
+      wget \
+      cmake \
+      make \
+      g++ \
+      ninja-build \
+&& rm -rf /var/lib/apt/lists/*
+
+USER gitpod
+RUN wget --no-check-certificate \
+    https://repo.anaconda.com/miniconda/Miniconda3-latest-Linux-x86_64.sh \
+    && bash Miniconda3-latest-Linux-x86_64.sh -b \
+    && rm -f Miniconda3-latest-Linux-x86_64.sh 
+
+ENV PATH=$PATH:$HOME/miniconda3
+ENV PATH=$PATH:$HOME/miniconda3/bin
+
+RUN conda install -c conda-forge jupyter xeus xtl nlohmann_json cppzmq -y
+RUN conda init
+