refactor: remove duplicate code for incrementing counters (#983)

From @56quarters in #981

Delegate to count method and use glob import for metric traits

(resubmitting due to github commit signature issues -- jrc)

src/server/metrics.rs

@@ -126,27 +126,7 @@ impl Metrics {
     }
 
     pub fn incr_with_tags(&self, label: &str, tags: Option<Tags>) {
-        if let Some(client) = self.client.as_ref() {
-            let mut tagged = client.incr_with_tags(label);
-            let mut mtags = self.tags.clone().unwrap_or_default();
-            if let Some(tags) = tags {
-                mtags.extend(tags.tags);
-            }
-            for key in mtags.tags.keys().clone() {
-                if let Some(val) = mtags.tags.get(key) {
-                    tagged = tagged.with_tag(&key, val.as_ref());
-                }
-            }
-            // Include any "hard coded" tags.
-            // incr = incr.with_tag("version", env!("CARGO_PKG_VERSION"));
-            match tagged.try_send() {
-                Err(e) => {
-                    // eat the metric, but log the error
-                    warn!("⚠️ Metric {} error: {:?} ", label, e; mtags);
-                }
-                Ok(v) => trace!("☑️ {:?}", v.as_metric_str()),
-            }
-        }
+        self.count_with_tags(label, 1, tags)
     }
 
     pub fn count(&self, label: &str, count: i64) {