Add to SlinSlo go template benchmark suite

[mvrhov]

Checklist

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Detailed Description

• Add benchmark to the list of other template benchmarks.
• Provide the bechnhmark results in readme until this is re-run by the author of original bench suite.

[osteele]

This issue can be addressed by creating a PR against SlinSo/goTemplateBenchmark:

• Add this package to glide.yaml
• Create a liquid folder;
• Translate at least the simple.* template from one of the other directories to liquid/simple.liquid.
• Adding a function templates_test.go and templates_complex_test.go

This (osteele/liquid) package doesn't have a “precompile to go” option. The closest match is to precompile the template, and then run the compiled template. That performance is barely different from applying an uncompiled template — because most of the render time is in emulating Ruby semantics — so it probably doesn't make sense to add timings to the “precompilation to Go code” sections of SlinSo/goTemplateBenchmark's README.

[osteele]

I've created a related issue #32, to add benchmarks to this (osteele/liquid) repository. This can be done independently of creating a PR to add timings to SlinSo/goTemplateBenchmark, except that the work of translating the test files from that repo into Liquid could be used for both this issue and that one.