Added missing SDWebImage pod for Example project

Author: IjzerenHein

example/ios/Podfile

@@ -26,4 +26,5 @@ target 'ReactNativeFirebaseUIExample' do
   pod 'Fabric', '~> 1.7.13'
   pod 'Crashlytics', '~> 3.10.9'
 
+  pod 'SDWebImage', '~> 4.0'
 end

example/ios/Podfile.lock

@@ -192,6 +192,9 @@ PODS:
   - nanopb/decode (0.3.901)
   - nanopb/encode (0.3.901)
   - Protobuf (3.6.1)
+  - SDWebImage (4.4.5):
+    - SDWebImage/Core (= 4.4.5)
+  - SDWebImage/Core (4.4.5)
 
 DEPENDENCIES:
   - Crashlytics (~> 3.10.9)
@@ -207,6 +210,7 @@ DEPENDENCIES:
   - Firebase/Performance (~> 5.11.0)
   - Firebase/RemoteConfig (~> 5.11.0)
   - Firebase/Storage (~> 5.11.0)
+  - SDWebImage (~> 4.0)
 
 SPEC REPOS:
   https://github.com/cocoapods/specs.git:
@@ -242,6 +246,7 @@ SPEC REPOS:
     - leveldb-library
     - nanopb
     - Protobuf
+    - SDWebImage
 
 SPEC CHECKSUMS:
   BoringSSL: e10f92a27043805c01071fe815a5cd98ae8212e7
@@ -276,7 +281,8 @@ SPEC CHECKSUMS:
   leveldb-library: 08cba283675b7ed2d99629a4bc5fd052cd2bb6a5
   nanopb: 2901f78ea1b7b4015c860c2fdd1ea2fee1a18d48
   Protobuf: 1eb9700044745f00181c136ef21b8ff3ad5a0fd5
+  SDWebImage: ecc03494e973b93b80213649d32175f8d2d17d4d
 
-PODFILE CHECKSUM: 81e61cb80d12a845186cac8b790b122df6fdab1d
+PODFILE CHECKSUM: 99b7e4a578006a817cd2fbc474e847209af64589
 
 COCOAPODS: 1.5.3