Add $schema field to root of model for IDE usage

[nsmith-]

Makes nice tooltips e.g.

[github-actions]

CVMFS benchmarks

Top 25 slowest-loading corrections, sorted by mean time:

Benchmark	Mean (ms)	Stddev (ms)	Rounds
test_load[JME/Run2-2017-UL-NanoAODv9/latest/jet_jerc.json.gz]	2362.635	14.628	5
test_load[JME/Run2-2017-UL-NanoAODv9/latest/fatJet_jerc.json.gz]	2094.813	13.211	5
test_load[JME/Run3-24Prompt-Winter24-NanoAODv14/latest/jet_jerc.json.gz]	678.772	4.815	5
test_load[JME/Run3-24CDEReprocessingFGHIPrompt-Summer24-NanoAODv15/latest/jet_jerc.json.gz]	606.417	2.508	5
test_load[JME/Run3-24CDEReprocessingFGHIPrompt-Summer24-NanoAODv15/latest/fatJet_jerc.json.gz]	606.162	3.378	5
test_load[JME/Run3-25Prompt-Winter25-NanoAODv15/latest/fatJet_jerc.json.gz]	414.695	1.222	5
test_load[JME/Run3-25Prompt-Winter25-NanoAODv15/latest/jet_jerc.json.gz]	412.254	0.485	5
test_load[JME/Run2-2018-UL-NanoAODv9/latest/jet_jerc.json.gz]	386.560	0.786	5
test_load[JME/Run3-22EFGSep23-Summer22EE-NanoAODv12/latest/fatJet_jerc.json.gz]	333.654	0.802	5
test_load[JME/Run2-2018-UL-NanoAODv9/latest/fatJet_jerc.json.gz]	319.370	2.131	5
test_load[JME/Run3-22EFGSep23-Summer22EE-NanoAODv12/latest/jet_jerc.json.gz]	315.974	1.333	5
test_load[JME/Run3-23CSep23-Summer23-NanoAODv12/latest/jet_jerc.json.gz]	298.665	1.072	5
test_load[JME/Run3-23CSep23-Summer23-NanoAODv12/latest/fatJet_jerc.json.gz]	283.121	1.458	5
test_load[JME/Run2-2016preVFP-UL-NanoAODv9/latest/jet_jerc.json.gz]	265.265	0.890	5
test_load[JME/Run2-2016preVFP-UL-NanoAODv9/latest/fatJet_jerc.json.gz]	231.599	0.354	5
test_load[JME/Run3-23DSep23-Summer23BPix-NanoAODv12/latest/jet_jerc.json.gz]	227.602	0.603	5
test_load[JME/Run3-22CDSep23-Summer22-NanoAODv12/latest/fatJet_jerc.json.gz]	223.545	0.854	5
test_load[JME/Run3-22Prompt-Winter22-NanoAODv12/latest/jet_jerc.json.gz]	214.659	0.878	5
test_load[JME/Run3-22Prompt-Winter22-NanoAODv12/latest/fatJet_jerc.json.gz]	214.023	0.985	5
test_load[JME/Run3-23DSep23-Summer23BPix-NanoAODv12/latest/fatJet_jerc.json.gz]	212.570	0.347	5
test_load[JME/Run2-2016postVFP-UL-NanoAODv9/latest/jet_jerc.json.gz]	210.598	0.761	5
test_load[JME/Run3-22CDSep23-Summer22-NanoAODv12/latest/jet_jerc.json.gz]	207.286	0.559	5
test_load[JME/Run2-2016postVFP-UL-NanoAODv9/latest/fatJet_jerc.json.gz]	183.517	0.508	5
test_load[TAU/Run3-22EFGSep23-Summer22EE-NanoAODv12/latest/tau.json.gz]	174.330	9.909	5
test_load[TAU/Run3-23CSep23-Summer23-NanoAODv12/latest/tau.json.gz]	161.156	0.608	5