ScribeJava Ning Async Http Client support

<!-- https://jarcasting.com/artifacts/com.github.thspinto/scribejava-httpclient-ning/ -->
<dependency>
    <groupId>com.github.thspinto</groupId>
    <artifactId>scribejava-httpclient-ning</artifactId>
    <version>8.1.2</version>
</dependency>

// https://jarcasting.com/artifacts/com.github.thspinto/scribejava-httpclient-ning/
implementation 'com.github.thspinto:scribejava-httpclient-ning:8.1.2'

// https://jarcasting.com/artifacts/com.github.thspinto/scribejava-httpclient-ning/
implementation ("com.github.thspinto:scribejava-httpclient-ning:8.1.2")

'com.github.thspinto:scribejava-httpclient-ning:jar:8.1.2'

<dependency org="com.github.thspinto" name="scribejava-httpclient-ning" rev="8.1.2">
  <artifact name="scribejava-httpclient-ning" type="jar" />
</dependency>

@Grapes(
@Grab(group='com.github.thspinto', module='scribejava-httpclient-ning', version='8.1.2')
)

libraryDependencies += "com.github.thspinto" % "scribejava-httpclient-ning" % "8.1.2"

[com.github.thspinto/scribejava-httpclient-ning "8.1.2"]