Send a HTTP request to MultiVIM with content-type = multipart/form-data.

The broker  is not able to forward this request to the plugin.  We are getting a Unicode error given below.

This is required because a plugin accepts a tosca csar file with its related input as json. But the MultiVIM broker which does not seem to accept multipart/form-data request and is not able to forward the request to the plugin

Below is the error trace:

2018-03-09 05:00:39,952:[multivimbroker.pub.utils.restcall]:[restcall.py]-[63]

           *[DEBUG]:request=https://aai-service.onap-aai:8443/aai/v11/cloud-infra*

structure/cloud-regions/cloud-region/azure/azure)

2018-03-09 12:32:02,874:[multivimbroker.forwarder.views]:[views.py]-[123]

      [DEBUG]:forward request

2018-03-09 12:32:02,875:[multivimbroker.pub.utils.restcall]:[restcall.py]-[63]

           *[DEBUG]:request=https://aai-service.onap-aai:8443/aai/v11/cloud-infra*

structure/cloud-regions/cloud-region/azure/azure)

2018-03-09 12:32:02,949:[multivimbroker.pub.utils.restcall]:[restcall.py]-[63]

           *[DEBUG]:request=http://10.244.2.71:80/api/multicloud-azure/v0/azure_a*

zure/createStack/servicestest2)

2018-03-09 12:32:02,952:[multivimbroker.pub.utils.restcall]:[restcall.py]-[85]

           [ERROR]:Traceback (most recent call last):

  File "/opt/multivimbroker/multivimbroker/pub/utils/restcall.py", line 81, in c

all_req

    raise ex

UnicodeDecodeError: 'ascii' codec can't decode byte 0xc2 in position 178: ordina

l not in range(128)