[IMP] l10n_uk: One tag per grid in tax report

closes odoo/odoo#31310

Signed-off-by: Quentin De Paoli (qdp) <qdp@openerp.com>

addons/l10n_uk/data/account.account.tag.csv

 id,name,applicability
-tag_st0,ST0,taxes
-tag_st1,ST1,taxes
-tag_st2,ST2,taxes
-tag_pt0,PT0,taxes
-tag_pt1,PT1,taxes
-tag_pt2,PT2,taxes
-tag_pt8m,PT8M,taxes
-tag_pt8r,PT8R,taxes
-tag_pt8,PT8,taxes
-tag_pt5,PT5,taxes
-tag_st5,ST5,taxes
-tag_st4,ST4,taxes
-tag_pt7,PT7,taxes
-tag_st11,ST11,taxes
-tag_pt11,PT11,taxes
+vat_tag_box1,[BOX 1] VAT due on sales and other outputs,taxes
+vat_tag_box2,[BOX 2] VAT due on acquisitions from EC,taxes
+vat_tag_box4,[BOX 4] VAT reclaimed on purchases and other inputs (including acquisitions from EC),taxes
+vat_tag_box6,[BOX 6] Total value of sales and other outputs excluding VAT (including EC supplies),taxes
+vat_tag_box7,[BOX 7] Total value of purchases and inputs excluding VAT (including EC acquisitions),taxes
+vat_tag_box8,[BOX 8] Total value of EC sales excluding VAT,taxes
+vat_tag_box9,[BOX 9] Total value of EC purchases excluding VAT,taxes

addons/l10n_uk/data/account.tax.template.csv

 id,description,chart_template_id:id,type_tax_use,name,amount_type,amount,account_id:id,refund_account_id:id,children_tax_ids:id,tag_ids:id,tax_group_id:id
-ST0,ST0,l10n_uk,sale,Zero rated sales,percent,0,2200,2200,,tag_st0,tax_group_0
-ST2,ST2,l10n_uk,sale,Exempt sales,percent,0,2200,2200,,tag_st2,tax_group_0
-PT0,PT0,l10n_uk,purchase,Zero rated purchases,percent,0,2201,2201,,tag_pt0,tax_group_0
-PT2,PT2,l10n_uk,purchase,Exempt purchases,percent,0,2201,2201,,tag_pt2,tax_group_0
-PT8M,PT8M,l10n_uk,none,Standard rated purchases from EC,percent,20.0,2201,2201,,tag_pt8m,tax_group_0
-PT8R,PT8R,l10n_uk,none,Reverse EC Purchase VAT,percent,-20.0,2201,2201,,tag_pt8r,tax_group_0
-PT8,PT8,l10n_uk,purchase,Standard rated purchases from EC,group,,2201,2201,"PT8M,PT8R",tag_pt8,tax_group_0
-PT5,PT5,l10n_uk,purchase,Lower rate purchases (5%),percent,5,2201,2201,,tag_pt5,tax_group_5
-ST5,ST5,l10n_uk,sale,Lower rate sales (5%),percent,5,2200,2200,,tag_st5,tax_group_5
-ST4,ST4,l10n_uk,sale,Sales to customers in EC,percent,0,2200,2200,,tag_st4,tax_group_0
-PT7,PT7,l10n_uk,purchase,Zero rated purchases from EC,percent,0,2201,2201,,tag_pt7,tax_group_0
-ST11,ST11,l10n_uk,sale,Standard rate (20%),percent,20,2200,2200,,tag_st11,tax_group_20
-PT11,PT11,l10n_uk,purchase,Standard rate (20%),percent,20,2201,2201,,tag_pt11,tax_group_20
+ST0,ST0,l10n_uk,sale,Zero rated sales,percent,0,2200,2200,,"vat_tag_box1,vat_tag_box6",tax_group_0
+ST2,ST2,l10n_uk,sale,Exempt sales,percent,0,2200,2200,,"vat_tag_box1,vat_tag_box6",tax_group_0
+PT0,PT0,l10n_uk,purchase,Zero rated purchases,percent,0,2201,2201,,"vat_tag_box4,vat_tag_box7",tax_group_0
+PT2,PT2,l10n_uk,purchase,Exempt purchases,percent,0,2201,2201,,"vat_tag_box4,vat_tag_box7",tax_group_0
+PT8M,PT8M,l10n_uk,none,Standard rated purchases from EC,percent,20,2201,2201,,vat_tag_box2,tax_group_0
+PT8R,PT8R,l10n_uk,none,Reverse EC Purchase VAT,percent,-20,2201,2201,,vat_tag_box4,tax_group_0
+PT8,PT8,l10n_uk,purchase,Standard rated purchases from EC,group,,2201,2201,"PT8M,PT8R","vat_tag_box9,vat_tag_box2",tax_group_0
+PT5,PT5,l10n_uk,purchase,Lower rate purchases (5%),percent,5,2201,2201,,"vat_tag_box7,vat_tag_box4",tax_group_5
+ST5,ST5,l10n_uk,sale,Lower rate sales (5%),percent,5,2200,2200,,"vat_tag_box1,vat_tag_box6",tax_group_5
+ST4,ST4,l10n_uk,sale,Sales to customers in EC,percent,0,2200,2200,,vat_tag_box8,tax_group_0
+PT7,PT7,l10n_uk,purchase,Zero rated purchases from EC,percent,0,2201,2201,,vat_tag_box9,tax_group_0
+ST11,ST11,l10n_uk,sale,Standard rate sales (20%),percent,20,2200,2200,,"vat_tag_box1,vat_tag_box6",tax_group_20
+PT11,PT11,l10n_uk,purchase,Standard rate purchases (20%),percent,20,2201,2201,,"vat_tag_box7,vat_tag_box4",tax_group_20