RxFirebase2-Storage Kotlin support

<!-- https://jarcasting.com/artifacts/com.github.b3er/rxfirebase-storage-kotlin/ -->
<dependency>
    <groupId>com.github.b3er</groupId>
    <artifactId>rxfirebase-storage-kotlin</artifactId>
    <version>10.1.0</version>
    <type>aar</type>
</dependency>

// https://jarcasting.com/artifacts/com.github.b3er/rxfirebase-storage-kotlin/
implementation 'com.github.b3er:rxfirebase-storage-kotlin:10.1.0'

// https://jarcasting.com/artifacts/com.github.b3er/rxfirebase-storage-kotlin/
implementation ("com.github.b3er:rxfirebase-storage-kotlin:10.1.0")

'com.github.b3er:rxfirebase-storage-kotlin:aar:10.1.0'

<dependency org="com.github.b3er" name="rxfirebase-storage-kotlin" rev="10.1.0">
  <artifact name="rxfirebase-storage-kotlin" type="aar" />
</dependency>

@Grapes(
@Grab(group='com.github.b3er', module='rxfirebase-storage-kotlin', version='10.1.0')
)

libraryDependencies += "com.github.b3er" % "rxfirebase-storage-kotlin" % "10.1.0"

[com.github.b3er/rxfirebase-storage-kotlin "10.1.0"]