Added a table output

[italolelis]

Instead of giving an output to stdout only I've added a table output when in verbose mode.

❯ go run main.go check google.com twitter.com not-valid-blah.com -v
   ⨯ Get http://not-valid-blah.com: dial tcp: lookup not-valid-blah.com: no such host
   ⨯ Unreachable!              domain=not-valid-blah.com
   • Reachable!                domain=twitter.com
   • Reachable!                domain=google.com
+-------------+-------------+------------+----------------+---------------+-------------------+------------------+---------------+
| Domain      | Status Code | DNS Lookup | TCP Connection | TLS Handshake | Server Processing | Content Transfer | Total Time    |
+-------------+-------------+------------+----------------+---------------+-------------------+------------------+---------------+
| twitter.com | 200         | 1          | 20             | 240           | 173               | 2562047          | 9223372036854 |
| google.com  | 200         | 1          | 31             | 0             | 87                | 2562047          | 9223372036854 |
+-------------+-------------+------------+----------------+---------------+-------------------+------------------+---------------+

[coveralls]

Pull Request Test Coverage Report for Build 57

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 88.462%

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Totals
Change from base Build 54:	0.0%
Covered Lines:	46
Relevant Lines:	52

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💛 - Coveralls