[PFsense] Update PFsense HAProxy parsing

[legoguy1000]

What does this PR do?

Add support for parsing HTTP, TCP and Error logs for HAproxy running on PFsense.

Checklist

• I have reviewed tips for building integrations and this pull request is aligned with them.
• I have verified that all data streams collect metrics or logs.
• I have added an entry to my package's changelog.yml file.
• I have verified that Kibana version constraints are current according to guidelines.

Author's Checklist

• [ ]

How to test this PR locally

Related issues

• Resolves [Bug][Pfsense Integration] #3501

Screenshots

[elasticmachine]

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Build stats

• Start Time: 2022-06-15T00:37:40.411+0000

• Duration: 17 min 35 sec

Test stats 🧪

Test	Results
Failed	0
Passed	45
Skipped	0
Total	45

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[efd6]

/test

[elasticmachine]

🌐 Coverage report

Name	Metrics % (covered/total)	Diff
Packages	100.0% (1/1)	💚
Files	88.889% (8/9)	👎 -7.679
Classes	88.889% (8/9)	👎 -7.679
Methods	92.063% (58/63)	👍 3.256
Lines	89.35% (646/723)	👎 -0.546
Conditionals	100.0% (0/0)	💚

[legoguy1000]

@efd6 ready to retest

[efd6]

/test

[legoguy1000]

fixed

[efd6]

/test

[efd6]

LGTM, thanks.