Implement getRunner grpc endpoint

This includes refactoring the jobscheduler into the runnermanager. This
service manages runner connections and allocating them to pipelines.
These requests are done via the pipeline grpc api

poll/poll.go

@@ -6,7 +6,6 @@ import (
 	"github.com/op/go-logging"
 
 	"git.ohea.xyz/cursorius/server/config"
-	"git.ohea.xyz/cursorius/server/jobscheduler"
 	"git.ohea.xyz/cursorius/server/pipeline_executor"
 	"github.com/go-git/go-git/v5"
 	"github.com/go-git/go-git/v5/plumbing"
@@ -25,7 +24,7 @@ type tag struct {
 	commitHash string
 }
 
-func pollJob(repoName string, jobConfig config.Job, runCh chan jobscheduler.Run, pipelineConf config.PipelineConf) {
+func pollJob(repoName string, jobConfig config.Job, pipelineConf config.PipelineConf) {
 	prevCommits := make(map[string]string)
 	for {
 		time.Sleep(time.Duration(jobConfig.PollInterval) * time.Second)
@@ -104,12 +103,12 @@ func pollJob(repoName string, jobConfig config.Job, runCh chan jobscheduler.Run,
 	}
 }
 
-func StartPolling(conf config.Config, runCh chan jobscheduler.Run) {
+func StartPolling(conf config.Config) {
 	for jobName, job := range conf.Jobs {
 		if job.PollInterval == 0 {
 			continue
 		} else {
-			go pollJob(jobName, job, runCh, conf.PipelineConf)
+			go pollJob(jobName, job, conf.PipelineConf)
 		}
 	}
 }