Add logs to Logs page (#151)

* Add websocket connection

* Add logs to the log page

* Make debug color more readable

* Remove TODO from front page

* Put all log entries in latest first order

* Add filtering of log entries by level

* Limit log entries and throttle updates

* Fix logger not throttling broadcasts

* Remove now unnecessary UI-side log throttling

* Filter incoming logs by log level

* Make log view more terminal-like

pkg/api/resolver_query_logs.go

@@ -0,0 +1,23 @@
+package api
+
+import (
+	"context"
+
+	"github.com/stashapp/stash/pkg/logger"
+	"github.com/stashapp/stash/pkg/models"
+)
+
+func (r *queryResolver) Logs(ctx context.Context) ([]*models.LogEntry, error) {
+	logCache := logger.GetLogCache()
+	ret := make([]*models.LogEntry, len(logCache))
+
+	for i, entry := range logCache {
+		ret[i] = &models.LogEntry{
+			Time:    entry.Time,
+			Level:   getLogLevel(entry.Type),
+			Message: entry.Message,
+		}
+	}
+
+	return ret, nil
+}