[release] 1.47.2 - Bootstrap Improvements (#300)

### Improvements
  - Bootstrap Improvements
1. Compare user objects instead of user hash to see if there is a
mismatch
2. Use the time from the bootstrapping response as the time
3. Set fields from sdk info on exposures to know which sdk generated the
bootstrap response
  ### Fixes
  - Minor typo fixes.
  





>Included In This Release
>- 24c0868 Weihao Ding
>   - fix: ios bootstrap (#299)
>- 3a57101 Weihao Ding
>   - chore: bootstrap improvements (#294)
>- 47216bf vmadhusudanan
>   - minor typo in ios sdk (#298)

Sources/Statsig/DeviceEnvironment.swift

@@ -7,7 +7,7 @@ struct DeviceEnvironment {
 
     static internal let deviceOS = PlatformCompatibility.deviceInfo.os
     static internal let sdkType: String = "ios-client"
-    static internal let sdkVersion: String = "1.47.1"
+    static internal let sdkVersion: String = "1.47.2"
 
     let lock = NSLock()
     var sessionID: String? { UUID().uuidString }

Statsig.podspec

@@ -1,7 +1,7 @@
 Pod::Spec.new do |spec|
 
   spec.name         = "Statsig"
-  spec.version      = "1.47.1"
+  spec.version      = "1.47.2"
   spec.summary      = "Statsig enables developers to ship code faster and more safely."
   spec.description  = <<-DESC
                    Statsig enables developers to ship code faster and more safely by providing: