Update build setup for raspbian and debug binaries (#1384)

- Build both debug and release binaries
- Append "d" to debug libraries in the style of opencv
- Split shared and static classifiers
- Add raspbian support

shared/nilibraries.gradle

@@ -16,7 +16,7 @@ model {
       artifactId = 'chipobject'
       headerClassifier = 'headers'
       ext = 'zip'
-      version = '2019.4.1'
+      version = '2019.4.2'
       sharedConfigs = chipObjectConfigs
       staticConfigs = [:]
       compileOnlyShared = true
@@ -26,7 +26,7 @@ model {
       artifactId = 'netcomm'
       headerClassifier = 'headers'
       ext = 'zip'
-      version = '2019.4.1'
+      version = '2019.4.2'
       sharedConfigs = netCommLibConfigs
       staticConfigs = [:]
       compileOnlyShared = true