Proposal: Consistent inspect/output from CLI

Description

When going through the different cli commands, the output tends to differ based on the command being used.
Although this has been there for ever, it'd be great to standardize it and allow more flexibility.

Steps to reproduce the issue:

1. Get docker up and running
2. Check docker info - notice the 'pretty print'. How do you get that in a JSON format?
3. Check docker node inspect self - notice the jSON output. But you do have the option to --pretty print.

Describe the results you received:
All outputs are different based on the command that you're executing

Describe the results you expected:
I expect all of my outputs to be in JSON or pretty-print format. I also expect all commands to support the --pretty flag in order to get a cleaner output.
For example, inspecting a container, gives a JSON output, but there is no --pretty support:

$ docker container inspect 1c0 --pretty
unknown flag: --pretty

Additional information you deem important (e.g. issue happens only occasionally):
This has been in the CLI for ever and isn't a huge deal, more of an annoyance.

Output of docker version:

$ docker version
Client:
 Version:      17.09.0-ce-rc1
 API version:  1.31
 Go version:   go1.8.3
 Git commit:   ae21824
 Built:        Wed Sep  6 22:25:36 2017
 OS/Arch:      darwin/amd64

Server:
 Version:      17.09.0-ce-rc1
 API version:  1.32 (minimum version 1.12)
 Go version:   go1.8.3
 Git commit:   ae21824
 Built:        Wed Sep  6 22:31:19 2017
 OS/Arch:      linux/amd64
 Experimental: true

Start by comparing the output and available flags for docker info, docker node inspect self, and docker container inspect. Define the desired JSON and pretty-print behavior, including consistent --pretty support, before locating the affected CLI commands and deciding how completion will be tested.