chore: add missing phpmetrics config

phpmetrics/.gitignore

+html-report/
+report.csv

phpmetrics/config-non-fail.json

+{
+	"searches": {
+		"Class with too complex code": {
+			"type": "class",
+			"ccn": ">=10",
+			"failIfFound": false
+		},
+		"Class with too many responsabilitites": {
+			"type": "class",
+			"lcom": ">=3",
+			"failIfFound": false
+		}
+	}
+}

phpmetrics/config.json

+{
+	"searches": {
+		"Class with too complex code": {
+			"type": "class",
+			"ccn": ">=10",
+			"failIfFound": true
+		},
+		"Class with too many responsabilitites": {
+			"type": "class",
+			"lcom": ">=3",
+			"failIfFound": true
+		}
+	}
+}