style(renderDocsProcessor): remove redundant var declaration
feat(computePathsProcessor): add configurable processor

This processor can be configured to compute different paths for docs based
on their docType.
refact(jsdoc/computePathProcessor): use the computePathProcessor from base package
refact(jsdoc): use computePathProcessor from base package
feat(jsdoc file-reader): give each read doc a `docType` of `"js"`
fix(jsdoc): add 'js' docType path template
refact(ngdoc): use computePathProcessor from base package
test(base): add rejection handler to log error message
fix(computeIdProcessor): don't compute if id is already defined
refact(examples): use computePathProcessor from base package