Adding support for devcontainer

.devcontainer/Dockerfile

@@ -0,0 +1 @@
+FROM klakegg/devcontainer-ubltc

.devcontainer/devcontainer.json

@@ -0,0 +1,14 @@
+{
+	"name": "OASIS UBL",
+	"build": {
+		"dockerfile": "Dockerfile",
+	},
+	"settings": {
+		"terminal.integrated.shell.linux": "/bin/bash",
+		"terminal.integrated.shellArgs.linux": [ "-l" ],
+	},
+	"extensions": [
+		"redhat.vscode-xml",
+		"dotjoshjohnson.xml"
+	],
+}

.gitignore

@@ -0,0 +1 @@
+/target

build.sh

@@ -1,6 +1,6 @@
 #!/bin/bash
 
-if [ "$5" = "" ]; then echo Missing results directory, platform, label, realta-username, realta-password arguments ; exit 1 ; fi
+if [ "$5" ]; then echo Missing results directory, platform, label, realta-username, realta-password arguments ; exit 1 ; fi
 
 export targetdir="$1"
 export platform=$2

build.xml

@@ -108,6 +108,7 @@ file="${utilitydir}Crane-cva2sch-${cva2sch}/utility/iso_schematron_assembly.xsl"
       <include name="*"/>
       <exclude name="**/.git/**"/>
       <exclude name="**/.github/**"/>
+      <exclude name="**/.devcontainer/**"/>
       <exclude name="**/utilities/**"/>
       <exclude name="**/${dir}/**"/>
       <exclude name="**/${rawdir}/**"/>
@@ -1018,6 +1019,7 @@ file="${utilitydir}Crane-cva2sch-${cva2sch}/utility/iso_schematron_assembly.xsl"
       <include name="**"/>
       <exclude name="**/.git/**"/>
       <exclude name="**/.github/**"/>
+      <exclude name="**/.devcontainer/**"/>
       <exclude name="**/utilities/**"/>
       <exclude name="**/raw/**"/>
       <exclude name="**/${dir}/**"/>