Rename vscode-boot to vscode-spring-boot

To avoid confusing prefix matching between patterns like
vscode-boot-* and vscode-boot-properties-*, vscide-boot-java-*

This would pontially cause weird version strings in concourse resources.

vscode-extensions/vscode-spring-boot/properties-support/language-configuration.json

@@ -0,0 +1,21 @@
+{
+	"comments": {
+		"lineComment": "#"
+	},
+	"brackets": [
+	],
+	"autoClosingPairs": [
+		["{", "}"],
+		["[", "]"],
+		["(", ")"],
+		["\"", "\""],
+		["'", "'"]
+	],
+	"surroundingPairs": [
+		["{", "}"],
+		["[", "]"],
+		["(", ")"],
+		["\"", "\""],
+		["'", "'"]
+	]
+}