Use colons for error reporting for lines/char instead on brackets

[orta]

Bug Report

• TSLint version: 5.9.1
• TypeScript version: 2.8.x
• Running TSLint via: CLI / VSCode

Links to the error can't be clicked in the terminal due to un-standard URLs

I'd love to move them to use the format file.ts:12:3 which matches how TypeScript shows these errors microsoft/TypeScript#20736 (and how test runners show it)

I'm happy to write this PR, but with 79 open PRs, I thought it'd be more prudent to do an issue before putting the time in 👯

TypeScript code being linted

n/a

Actual behavior

~/dev/projects/danger/peril plugins*
❯ yarn lint
yarn run v1.5.1
$  tslint source/**/**/**.ts

ERROR: source/api/_tests/fixtureAPI.ts[20, 1]: Use of default exports is forbidden
ERROR: source/api/pr/dsl.ts[62, 8]: Use of default exports is forbidden
ERROR: source/github/events/github_runner.ts[227, 8]: Use of default exports is forbidden

error An unexpected error occurred: "Command failed.

Expected behavior

~/dev/projects/danger/peril plugins*
❯ yarn lint
yarn run v1.5.1
$  tslint source/**/**/**.ts

ERROR: source/api/_tests/fixtureAPI.ts:20:1 - Use of default exports is forbidden
ERROR: source/api/pr/dsl.ts:62:8 - Use of default exports is forbidden
ERROR: source/github/events/github_runner.ts:227:8 - Use of default exports is forbidden

error An unexpected error occurred: "Command failed.

[giladgray]

@orta yes this is a great idea!