Add compare-reads (#13635)

* Add compare-reads

* Add python run reqs

Should be brought in by pysm, but I see this in the build logs:
```
WARNING (compare-reads,lib/python2.7/site-packages/compare_reads/_compare_reads.so): Needed DSO lib/libpython2.7.so.1.0 found in ['python']
WARNING (compare-reads,lib/python2.7/site-packages/compare_reads/_compare_reads.so): .. but ['python'] not in reqs/run, i.e. it is overlinked (likely) or a missing dependency (less likely)
```

recipes/compare-reads/build.sh

@@ -0,0 +1,2 @@
+#!/bin/bash
+$PYTHON setup.py install

recipes/compare-reads/meta.yaml

@@ -0,0 +1,32 @@
+package:
+  name: compare-reads
+  version: 0.0.1
+
+source:
+  url: https://github.com/mvdbeek/pysam-compare-reads/archive/v0.0.1.tar.gz
+  sha256: e03be74b6d04d96950fa5f2932ebe58c38b68a1b2dcff04ed81729f650b22ec7
+
+build:
+  number: 0
+
+requirements:
+  build:
+    - {{ compiler('c') }}
+  host:
+    - python
+    - pysam
+    - setuptools
+    - cython
+
+  run:
+    - python
+    - pysam
+
+test:
+  imports:
+    - compare_reads
+
+about:
+  home: https://github.com/mvdbeek/pysam-compare-reads
+  license: MIT
+  summary: "cythonized function to compare reads by name."