Added devcontainer and updated pipeline.

.devcontainer/Dockerfile

@@ -1,11 +0,0 @@
-FROM mcr.microsoft.com/devcontainers/anaconda:1-3
-
-# Copy environment.yml (if found) to a temp location so we update the environment. Also
-# copy "noop.txt" so the COPY instruction does not fail if no environment.yml exists.
-COPY environment.yml* .devcontainer/noop.txt /tmp/conda-tmp/
-RUN if [ -f "/tmp/conda-tmp/environment.yml" ]; then umask 0002 && /opt/conda/bin/conda env update -n base -f /tmp/conda-tmp/environment.yml; fi \
-    && rm -rf /tmp/conda-tmp
-
-# [Optional] Uncomment this section to install additional OS packages.
-# RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \
-#     && apt-get -y install --no-install-recommends <your-package-list-here>

.devcontainer/devcontainer.json

@@ -1,31 +1,24 @@
 // For format details, see https://aka.ms/devcontainer.json. For config options, see the
-// README at: https://github.com/devcontainers/templates/tree/main/src/anaconda
+// README at: https://github.com/devcontainers/templates/tree/main/src/java
 {
-	"name": "Anaconda (Python 3)",
-	"build": { 
-		"context": "..",
-		"dockerfile": "Dockerfile"
-	},
-	"customizations": {
-		"vscode": {
-			"extensions": [
-				"vscjava.vscode-java-test",
-				"vscjava.vscode-java-dependency",
-				"vscjava.vscode-maven",
-				"redhat.java",
-				"vscjava.vscode-java-debug"
-			]
-		}
-	}
+	"name": "Java",
+	// Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
+	"image": "mcr.microsoft.com/devcontainers/java:1-11-bullseye",
 
-	// Features to add to the dev container. More info: https://containers.dev/features.
-	// "features": {},
+	"features": {
+		"ghcr.io/devcontainers/features/java:1": {
+			"version": "none",
+			"installMaven": "true",
+			"installGradle": "true"
+		},
+		"ghcr.io/devcontainers/features/powershell:1": {}
+	}
 
 	// Use 'forwardPorts' to make a list of ports inside the container available locally.
 	// "forwardPorts": [],
 
 	// Use 'postCreateCommand' to run commands after the container is created.
-	// "postCreateCommand": "python --version",
+	// "postCreateCommand": "java -version",
 
 	// Configure tool-specific properties.
 	// "customizations": {},

.devcontainer/noop.txt

@@ -1,3 +0,0 @@
-This file copied into the container along with environment.yml* from the parent
-folder. This file is included to prevents the Dockerfile COPY instruction from 
-failing if no environment.yml is found.