CLI-31 Lock exact versions for installs and add shared connected mode

Author: nquinquenel

.npmrc

@@ -0,0 +1 @@
+save-exact=true

.sonarlint/connectedMode.json

@@ -0,0 +1,5 @@
+{
+    "sonarCloudOrganization": "sonarsource",
+    "projectKey": "SonarSource_sonarqube-cli",
+    "region": "EU"
+}