feat/woo template

• Common project files update
• Common project files update
• test suite init
• theme resolver test
• tests for wptheme resolver
• implementation of wp theme resolver
• tests for dir resolver
• chain resolver tests
• dir resolver implementation
• better renderer interface
• fixed chain resolver tests
• chain resolver implementation
• renderer tests
• simple php renderer
• remove php from resolvers. Only PHP renderer can add it
• fix for invalid interface implementation
• view builder
• add output_render method
• chore(readme): more documentation
• chore(readme): more documentation
• feat: add WooTemplateResolver

.gitlab/issue_templates/Bug.md

+### Select WooCommerce version e.g: [x] 2.6
+<!--- Select the WooCommerce version on which the error occurred -->
+
+- [ ] [2.6](http://woo26.tests.wpdesk.org)
+- [ ] [2.7](http://woo27.tests.wpdesk.org)
+- [ ] [3.0](http://woo30.tests.wpdesk.org)
+- [ ] [3.1](http://woo31.tests.wpdesk.org)
+- [ ] [3.2](http://woo32.tests.wpdesk.org)
+- [ ] [3.3](http://woo33.tests.wpdesk.org)
+- [ ] [3.4](http://woo34.tests.wpdesk.org)
+- [ ] [Stable](https://stable.wpdesk.org/) 
+
+### Select PHP version e.g: [x] 5.6
+<!--- Select the PHP version on which the error occurred -->
+
+- [ ] 5.3 
+- [ ] 5.5
+- [ ] 5.6
+- [ ] 7.1
+- [ ] 7.2
+
+## Steps to Reproduce
+<!--- Provide a link to a live example, or an unambiguous set of steps to -->
+
+1. 
+2. 
+
+
+## Expected Behavior
+<!--- Tell what should happen -->
+
+1. 
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