PyOpenSci review updates including optimizing and consolidating conver_byte_size, cleanup with black for flake8 warnings

.flake8

@@ -0,0 +1,5 @@
+[flake8] 
+max-line-length = 88
+ignore = E203, E501, W503, W504
+per-file-ignores =
+    __init__.py: F401

examples/nu_example.py

@@ -2,26 +2,45 @@
 import os
 
 # download some veg structure data
-veg = nu.load_by_product(dpid='DP1.10098.001', site=['WREF','RMNP'], 
-                         startdate='2022-01', enddate='2023-12', 
-                         include_provisional=True, check_size=False, 
-                         token=os.environ.get('NEON_TOKEN'))
+veg = nu.load_by_product(
+    dpid="DP1.10098.001",
+    site=["WREF", "RMNP"],
+    startdate="2022-01",
+    enddate="2023-12",
+    include_provisional=True,
+    check_size=False,
+    token=os.environ.get("NEON_TOKEN"),
+)
 # see what data tables were returned
 veg.keys()
 
 # download 30-minute PAR data
-par = nu.load_by_product(dpid='DP1.00024.001', site='RMNP', 
-                         startdate='2023-06', enddate='2023-07', 
-                         timeindex=30, package='expanded', 
-                         include_provisional=True, check_size=False, 
-                         token=os.environ.get('NEON_TOKEN'))
+par = nu.load_by_product(
+    dpid="DP1.00024.001",
+    site="RMNP",
+    startdate="2023-06",
+    enddate="2023-07",
+    timeindex=30,
+    package="expanded",
+    include_provisional=True,
+    check_size=False,
+    token=os.environ.get("NEON_TOKEN"),
+)
 
 # download CHM tiles covering the veg structure plots at WREF
-pppy = veg['vst_perplotperyear']
-east = pppy['easting'].to_list()
-north = pppy['northing'].to_list()
+pppy = veg["vst_perplotperyear"]
+east = pppy["easting"].to_list()
+north = pppy["northing"].to_list()
 
-nu.by_tile_aop(dpid='DP3.30015.001', site='WREF', year=2023, 
-               easting=east, northing=north, buffer=20, 
-               include_provisional=True, check_size=False, 
-               savepath='INSERT FILE PATH', token=os.environ.get('NEON_TOKEN'))
+nu.by_tile_aop(
+    dpid="DP3.30015.001",
+    site="WREF",
+    year=2023,
+    easting=east,
+    northing=north,
+    buffer=20,
+    include_provisional=True,
+    check_size=False,
+    savepath="INSERT FILE PATH",
+    token=os.environ.get("NEON_TOKEN"),
+)

src/neonutilities/__init__.py

@@ -1,5 +1,10 @@
 from .citation import get_citation
-from .aop_download import by_file_aop, by_tile_aop, list_available_dates, get_aop_tile_extents
+from .aop_download import (
+    by_file_aop,
+    by_tile_aop,
+    list_available_dates,
+    get_aop_tile_extents,
+)
 from .tabular_download import zips_by_product
 from .get_issue_log import get_issue_log
 from .read_table_neon import read_table_neon