Consistency fixes for balance sheet

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extra : source : 9d8928587d1f3752d05b32b7d5dce379df90895e
Adding balance sheet latex template

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extra : source : e9e023de377fd0288e367f48b23d75a5a02ade54
Moving pdf balance sheet template to correct extension

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rename : UI/Reports/balance_sheet.pdf => UI/Reports/balance_sheet.tex
extra : source : 32ac976dba1cae259a384ad2352c90a4cbd58527
Initial PNL Latex template

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extra : source : ed3f12865bcf08389e39f8b2867a37df345e531e
Merging new templates and consistency in HTML, more testing needed, but nothing destabilized