Conversion update for 1.5.2, 1.6 and 2.0

[christian-rli]

Conversion between different versions of the metadata needs to be extended or rewritten. Versions 1.5.2, 1.6, 2.0 need support. Only forward support is necessary. Include tests and a short documentation on how to use the conversion function.

See #99

[Ludee]

<style> </style>

n	#	Key v20	Example
1	1	name	oep_oemetadata
2	2	title	OEP OEMetadata
3	3	id	https://databus.openenergyplatform.org/oeplatform/reference
4	5	name	oep_oemetadata_table_example
5	6	topics	model_draft, reference
6	7	title	OEP OEMetadata Example Table
7	8	path	http://openenergyplatform.org/dataedit/view/model_draft/oep_oemetadata_table_example
8	9	description	Example table used to illustrate the OEMetadata structure and meaning.
9	10	languages	en-GB, de-DE, fr-FR
10	11.1	name	energy
11	11.2	path	https://openenergy-platform.org/ontology/oeo/OEO_00000150
12	12	keywords	example, ODbL-1.0, NFDI4Energy
13	13	publicationDate	15.10.2024
14	14.1	start	11.10.2024
15	14.2	end	01.01.2025
16	14.3	isActive	True
17	15.1	title	NFDI4Energy
18	15.2	homepage	https://nfdi4energy.uol.de/
19	15.3	documentation	https://nfdi4energy.uol.de/sites/about_us/
20	15.4	sourceCode	https://github.com/NFDI4Energy
21	15.5	contact	info@nfdi4energy.org
22	15.6	grantNo	501865131
23	15.7	fundingAgency	Deutsche Forschungsgemeinschaft (DFG)
24	15.8	fundingAgencyLogo	https://upload.wikimedia.org/wikipedia/commons/8/86/DFG-logo-blau.svg
25	15.9	publisherLogo	https://reiner-lemoine-institut.de//wp-content/uploads/2015/09/rlilogo.png
26	16.1.1	address	Rudower Chaussee 12, 12489 Berlin
27	16.1.2	@id	https://www.wikidata.org/wiki/Q77077223
28	16.1.3	longitude	52.432822
29	16.1.4	longitude	13.5351004
30	16.2.1	name	Berlin
31	16.2.2	@id	https://www.wikidata.org/wiki/Q64
32	16.2.3	resolutionValue	100
33	16.2.4	resolutionUnit	m
34	16.2.5	boundingBox	[13.08825, 52.33859, 13.76104, 52.6754]
35	16.2.6	crs	EPSG:4326
36	17.1	referenceDate	01.01.2020
37	17.2.1	start	2020-01-01T00:00:00+00:00
38	17.2.2	end	2020-01-01T23:59:30+00:00
39	17.2.3	resolution	30 s
40	17.2.4	alignment	left
41	17.2.5	aggregationType	current
42	18.1	title	IPCC Sixth Assessment Report (AR6) - Climate Change 2023 - Synthesis Report
43	18.2	description	A Report of the Intergovernmental Panel on Climate Change
44	18.3	path	https://www.ipcc.ch/report/ar6/syr/downloads/report/IPCC_AR6_SYR_FullVolume.pdf
45	18.4.1	name	ODbL-1.0
46	18.4.2	title	Open Data Commons Open Database License 1.0
47	18.4.3	path	https://opendatacommons.org/licenses/odbl/1-0/index.html
48	18.4.4	instruction	You are free to share and change, but you must attribute, and share derivations under the same license. See https://tldrlegal.com/license/odc-open-database-license-odbl for further information.
49	18.4.5	attribution	© Intergovernmental Panel on Climate Change 2023
50	18.4.6	copyrightStatement	https://www.ipcc.ch/copyright/
51	19.1	name	ODbL-1.0
52	19.2	title	Open Data Commons Open Database License 1.0
53	19.3	path	https://opendatacommons.org/licenses/odbl/1-0/index.html
54	19.4	instruction	You are free to share and change, but you must attribute, and share derivations under the same license. See https://tldrlegal.com/license/odc-open-database-license-odbl for further information.
55	19.5	attribution	© Reiner Lemoine Institut
56	20.1	title	Ludwig Hülk
57	20.2	path	https://github.com/Ludee
58	20.2	organization	Reiner Lemoine Institut
59	20.2	roles	creator, dataCurator
60	20.3	date	21.10.2024
61	20.4	object	data and metadata
62	20.5	comment	Add general context.
63	21.1	type	table
64	21.4	format	PostgreSQL
65	21.5	encoding	UTF-8
66	22.6.1.1	name	year
67	22.6.1.2	description	Reference year for which the data were collected.
68	22.6.1.3	type	geometry(Point, 4326)
69	22.6.1.4	nullable	True
70	22.6.1.5	unit	MW
71	22.6.1.6.1	name	wind energy converting unit
72	22.6.1.6.2	path	https://openenergy-platform.org/ontology/oeo/OEO_00000044
73	22.6.1.7.1	value	onshore
74	22.6.1.7.2	name	onshore wind farm
75	22.6.1.7.3	path	https://openenergy-platform.org/ontology/oeo/OEO_00000311
76	23.6.2	primaryKey	id
77	23.6.3.1	fields	id, version
78	23.6.3.2.1	resource	model_draft.oep_oemetadata_table_example_version
79	23.6.3.2.2	fields	id, version
80	23.7.1	delimiter	,
81	23.7.2	decimalSeparator	.
82	24	@id	https://databus.openenergyplatform.org/oeplatform/supply/wri_global_power_plant_database/2022-11-07
83	25	@context	https://raw.githubusercontent.com/OpenEnergyPlatform/oemetadata/master/metadata/latest/context.json
84	26.1	path	https://www.example.com
85	26.2	badge	Platinum
86	27.1	metadataVersion	OEMetadata-2.0
87	27.2.1	name	CC0-1.0
88	27.2.2	title	Creative Commons Zero v1.0 Universal
89	27.2.3	path	https://creativecommons.org/publicdomain/zero/1.0/