Fix code analyzer issues

[joeygrover]

Fixes issues found in code analyzer

This PR is ready for review.

Risk

This PR makes no API changes.

Testing Plan

• Run unit tests
• Perform smoke tests

Summary

• Fix potential NPEs
• Optimize string and string builder usage
• Optimize unnecessary reference creation
• Fixed duplicate namespace in lockscreen layout
• Added Android version checks for specific APIs and constant usage

Bug Fixes

• Some of the issues found with the Android Studio code analyzer

CLA

• I have signed the CLA

[codecov-io]

Codecov Report

❗ No coverage uploaded for pull request base (develop@1b57bdc). Click here to learn what that means.
The diff coverage is 5.82%.

@@            Coverage Diff             @@
##             develop    #1179   +/-   ##
==========================================
  Coverage           ?   47.33%           
  Complexity         ?     4324           
==========================================
  Files              ?      481           
  Lines              ?    23359           
  Branches           ?     2658           
==========================================
  Hits               ?    11058           
  Misses             ?    11622           
  Partials           ?      679

Impacted Files	Coverage Δ	Complexity Δ
...va/com/smartdevicelink/transport/TCPTransport.java	0% <ø> (ø)	0 <0> (?)
...elink/transport/utl/ByteAraryMessageAssembler.java	44.11% <ø> (ø)	7 <0> (?)
...com/smartdevicelink/transport/TransportBroker.java	23.56% <0%> (ø)	20 <0> (?)
...ink/managers/permission/BasePermissionManager.java	73.04% <0%> (ø)	43 <0> (?)
...com/smartdevicelink/proxy/rpc/OnKeyboardInput.java	94.11% <0%> (ø)	8 <0> (?)
...tdevicelink/managers/video/VideoStreamManager.java	38.69% <0%> (ø)	14 <0> (?)
...smartdevicelink/proxy/rpc/DisplayCapabilities.java	75.51% <0%> (ø)	22 <0> (?)
...main/java/com/smartdevicelink/util/SdlAppInfo.java	37.5% <0%> (ø)	4 <0> (?)
...ink/managers/screen/BaseTextAndGraphicManager.java	49.32% <0%> (ø)	74 <0> (?)
...om/smartdevicelink/transport/SdlRouterService.java	11.79% <0%> (ø)	20 <0> (?)
... and 12 more

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