Merge new product ids into master (#726)

* Add support for RM4C mini (0x520D) (#694)

* Add support for SP4L-US (0x648C) (#707)

* Add support for RM4C mate (0x5211) (#709)

* Add support for RM4 mini (0x521C) (#710)

* Add support for LB1 (0x644B) (#717)

broadlink/__init__.py

@@ -76,6 +76,7 @@
         0x618B: ("SP4L-EU", "Broadlink"),
         0x6489: ("SP4L-AU", "Broadlink"),
         0x648B: ("SP4M-US", "Broadlink"),
+        0x648C: ("SP4L-US", "Broadlink"),
         0x6494: ("SCB2", "Broadlink"),
     },
     rmmini: {
@@ -115,8 +116,11 @@
         0x51DA: ("RM4 mini", "Broadlink"),
         0x5209: ("RM4 TV mate", "Broadlink"),
         0x520C: ("RM4 mini", "Broadlink"),
+        0x520D: ("RM4C mini", "Broadlink"),
+        0x5211: ("RM4C mate", "Broadlink"),
         0x5212: ("RM4 TV mate", "Broadlink"),
         0x5216: ("RM4 mini", "Broadlink"),
+        0x521C: ("RM4 mini", "Broadlink"),
         0x6070: ("RM4C mini", "Broadlink"),
         0x610E: ("RM4 mini", "Broadlink"),
         0x610F: ("RM4C mini", "Broadlink"),
@@ -153,6 +157,7 @@
         0x60C7: ("LB1", "Broadlink"),
         0x60C8: ("LB1", "Broadlink"),
         0x6112: ("LB1", "Broadlink"),
+        0x644B: ("LB1", "Broadlink"),
         0x644C: ("LB27 R1", "Broadlink"),        
         0x644E: ("LB26 R1", "Broadlink"),
     },