Require image for ARM64 architecture

Hi Team,

I am trying to use the **appdynamics/machine-agent-analytics** image on the arm64 platform but it seems it is not available for arm64.

I have tried building the image on the arm64 platform using **docker-compose up** command, but it is failing with below error on both amd64 and arm64.

```
Step 4/8 : ADD machine-agent.zip /tmp/
ERROR: Service 'docker-machine-agent' failed to build: ADD failed: file not found in build context or excluded by .dockerignore: stat machine-agent.zip: file does not exist

```
In Readme, it is mentioned to download **machine-agent.zip** from [here](https://login.appdynamics.com/sso/authenticate/?site=corp&target=https%3A%2F%2Faccounts.appdynamics.com%2Fdownloads) but while opening the link I am getting authentication issue during login.

It will be very helpful if the image is released for the ARM64 platform. If required, I am happy to contribute. But as a start, can you please provide me with some pointers on the above issue?