Add to_bed as well as a few tests (#203)

* add test for reading some bed formats

* renomae rgb to itemRgb

* add to_bed and associated tests

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Update tests/test_fileops.py

---------

Co-authored-by: Felix Raimundo <felix.raimundo@3umassmed.edu>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Nezar Abdennur <nabdennur@gmail.com>

Author: 4 people

bioframe/__init__.py

@@ -52,6 +52,7 @@
     "read_pairix",
     "read_tabix",
     "read_table",
+    "to_bed",
     "to_bigbed",
     "to_bigwig",
     "assign_view",
@@ -123,6 +124,7 @@
     read_pairix,
     read_tabix,
     read_table,
+    to_bed,
     to_bigbed,
     to_bigwig,
 )

bioframe/io/__init__.py

@@ -1,4 +1,5 @@
 from .assembly import assemblies_available, assembly_info
+from .bed import to_bed
 from .fileops import (
     load_fasta,
     read_bam,
@@ -24,6 +25,7 @@
     "read_bam",
     "load_fasta",
     "read_bigwig",
+    "to_bed",
     "to_bigwig",
     "read_bigbed",
     "to_bigbed",