copy bmerr stuff from bm

exerr/errinit.go

@@ -0,0 +1,17 @@
+package exerr
+
+type ErrorPackageConfig struct {
+	LogTraces       bool
+	RecursiveErrors bool
+}
+
+var pkgconfig = ErrorPackageConfig{
+	LogTraces: true,
+}
+
+// Init initializes the exerr packages
+// Must be called at the program start, before (!) any errors
+// Is not thread-safe
+func Init(cfg ErrorPackageConfig) {
+	pkgconfig = cfg
+}