config.enablePolicies = true dose not work on windows

[yoieh]

Describe the bug
When setting config.enablePolicies = true the policyDirectory is set to the root dir of the project and every file in the project gets loaded as a policy and fails.

To Reproduce
Steps to reproduce the behavior:

1. on windows spread rest-hapi in to your config and enable enablePolicies

...
const RestHapi = require("rest-hapi");

cosnt config = {
   ...RestHapi.config,
   enablePolicies: true
}
...

2. add console.log in side of mrhorse lib folder

node_modules\mrhorse\lib\index.js:179
...
197: console.log(policyName, policy)
...

3. run npm start
4. See error

....
auditLogTTL null
Error starting server: TypeError: Cannot read property 'applyPoint' of null
    at hasValidApplyPoint ([...]\node_modules\mrhorse\lib\index.js:18:20)
    at addPolicy ([...]\node_modules\mrhorse\lib\index.js:184:10)
    at [...]\node_modules\mrhorse\lib\index.js:226:64
    at [...]\node_modules\lodash\lodash.js:4905:15
    at baseForOwn ([...]\node_modules\lodash\lodash.js:2990:24)
    at [...]\node_modules\lodash\lodash.js:4874:18
    at Function.forEach ([...]\node_modules\lodash\lodash.js:9342:14)
    at loadPolicyFile ([...]\node_modules\mrhorse\lib\index.js:226:23)
    at loadPolicies ([...]\node_modules\mrhorse\lib\index.js:240:9)
    at Object.register ([...]\node_modules\mrhorse\lib\index.js:288:15)
    at internals.Server.register ([...]\node_modules\@hapi\hapi\lib\server.js:466:35)
    at registerMrHorse ([...]\node_modules\rest-hapi\rest-hapi.js:215:16)
    at Object.register ([...]\node_modules\rest-hapi\rest-hapi.js:115:9)
    at processTicksAndRejections (internal/process/task_queues.js:97:5)
    at async internals.Server.register ([...]\node_modules\@hapi\hapi\lib\server.js:466:17)
    at async api ([...]\api.js:25:5)

Expected behavior
It should not crash and load my policies

Desktop (please complete the following information):

• OS: win 10
• Version: 2.0 but hade the same problem in 1.9.x
• Nodejs: v12.16.1