Add more filters for API call /entries

New filters:

- before (unix timestamp)
- before_entry_id
- after
- after_entry_id
- starred (boolean)

vendor/github.com/miniflux/miniflux-go/client.go

@@ -477,6 +477,26 @@ func buildFilterQueryString(path string, filter *Filter) string {
 			values.Set("offset", strconv.Itoa(filter.Offset))
 		}
 
+		if filter.After > 0 {
+			values.Set("after", strconv.FormatInt(filter.After, 10))
+		}
+
+		if filter.AfterEntryID > 0 {
+			values.Set("after_entry_id", strconv.FormatInt(filter.AfterEntryID, 10))
+		}
+
+		if filter.Before > 0 {
+			values.Set("before", strconv.FormatInt(filter.Before, 10))
+		}
+
+		if filter.BeforeEntryID > 0 {
+			values.Set("before_entry_id", strconv.FormatInt(filter.BeforeEntryID, 10))
+		}
+
+		if filter.Starred {
+			values.Set("starred", "1")
+		}
+
 		path = fmt.Sprintf("%s?%s", path, values.Encode())
 	}
 

vendor/github.com/miniflux/miniflux-go/miniflux.go

@@ -127,11 +127,16 @@ type Enclosures []*Enclosure
 
 // Filter is used to filter entries.
 type Filter struct {
-	Status    string
-	Offset    int
-	Limit     int
-	Order     string
-	Direction string
+	Status        string
+	Offset        int
+	Limit         int
+	Order         string
+	Direction     string
+	Starred       bool
+	Before        int64
+	After         int64
+	BeforeEntryID int64
+	AfterEntryID  int64
 }
 
 // EntryResultSet represents the response when fetching entries.