Add new `triton_fabric_network` data source.

[kwilczynski]

This commit adds new data source called triton_fabric_network, which allows the end-user to find details about a particular Fabric Network based on the unique name of the network, which is used as a filter.

Signed-off-by: Krzysztof Wilczynski kw@linux.com

[kwilczynski]

To do:

• [x] Implementation
• [x] Add documentation / code comments
• [ ] Add unit tests
• [x] Add acceptance tests

[kwilczynski]

Related to #93.

[kwilczynski]

There are no unit tests.

[kwilczynski]

Acceptance tests:

$ make testacc TEST=./triton TESTARGS='-run TestAccTritonFabricNetwork'
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go test ./triton -v -run TestAccTritonFabricNetwork -timeout 120m
=== RUN   TestAccTritonFabricNetwork_MissingArguments
--- PASS: TestAccTritonFabricNetwork_MissingArguments (0.01s)
=== RUN   TestAccTritonFabricNetwork_BadArguments
--- PASS: TestAccTritonFabricNetwork_BadArguments (0.00s)
=== RUN   TestAccTritonFabricNetwork_NotFound
--- PASS: TestAccTritonFabricNetwork_NotFound (6.97s)
=== RUN   TestAccTritonFabricNetwork_Basic
--- PASS: TestAccTritonFabricNetwork_Basic (29.06s)
PASS
ok      github.com/hashicorp/terraform-website/ext/providers/triton/triton  36.051s

[kwilczynski]

Added documentation:

[stack72]

This LGTM! thanks for this @kwilczynski

terraform-provider-triton [kwilczynski-add-triton_fabric_network-data-source] % acctests triton TestAccTritonFabricNetwork_
=== RUN   TestAccTritonFabricNetwork_MissingArguments
--- PASS: TestAccTritonFabricNetwork_MissingArguments (0.00s)
=== RUN   TestAccTritonFabricNetwork_BadArguments
--- PASS: TestAccTritonFabricNetwork_BadArguments (0.00s)
=== RUN   TestAccTritonFabricNetwork_NotFound
--- PASS: TestAccTritonFabricNetwork_NotFound (7.01s)
=== RUN   TestAccTritonFabricNetwork_Basic
--- PASS: TestAccTritonFabricNetwork_Basic (27.70s)
PASS
ok      github.com/terraform-providers/terraform-provider-triton/triton 34.731s