feat(stream): add initial support for stream processing and live updates

[clok]

Stream

$ cat tmp/random.log | sig stream
N	5000000
Min	1258
Max	2084
Mean	2.28595
Mode	239
Median	224.55
Sum	1.139274e+07
Std Dev	4.717073
Variance	22.24969850
p50	2245
p75	2245.5
p90	4445
p95	5145
p99	117.55
Q1	107.5
Q2	224.55
Q3	224.55
Outliers	538195
Mild	341450
Extreme	196745

[22] next refresh at N modulo 1,000,000 == 0

... THEN ...

N	11388121
Min	1
Max	2084
Mean	1.56
Mode	1
Median	1
Sum	1.7780861e+07
Std Dev	3.1893
Variance	10.1714
p50	1
p75	2
p90	2
p95	3
p99	7
Q1	1
Q2	1
Q3	2
Outliers	538195
Mild	341450
Extreme	196745

Done. Processed 11,388,121 rows

[coveralls]

Pull Request Test Coverage Report for Build 2498368998

• 12 of 155 (7.74%) changed or added relevant lines in 2 files are covered.
• 11 unchanged lines in 1 file lost coverage.
• Overall coverage decreased (-20.9%) to 51.346%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
commands/common.go	12	83	14.46%
commands/stream.go	0	72	0.0%

Files with Coverage Reduction	New Missed Lines	%
commands/common.go	11	53.66%

Totals
Change from base Build 2488743717:	-20.9%
Covered Lines:	286
Relevant Lines:	557

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💛 - Coveralls